GOALS - Archive

Archive

JUNE 2025

01-09/06/2025 N. Teofanov, F. Tomić and M. Žigić prepared the third semi-annual report for the GOALS project.
01-30/06/2025 S. Aleksić studied sampling problems in Sobolev spaces, with particular focus on the case s<d/2. S. Aleksić, S. Dimitrijević and T. Tomović Mladenović discussed the topic of fractional differential equations, with special attention to singularities in boundary conditions.
02/06/2025 Kragujevac Journal of Mathematics (Editor-in-Chief S. Aleksić) is officially classified as M21.
02/06/2025 Monday meetings – Overview of the first half of the project. Team members discussed current and potential challenges arising from the overall political situation in Serbia.
02-06/06/2025 A. Aksentijević worked on the topic of Sampling in shift-invariant spaces of Sobolev type.
05/06/2025 Students have decided to completely block access to the Department of Mathematics and Informatics at the Faculty of Sciences, University of Novi Sad. As a result, the documents, equipment, and rooms necessary for the GOALS project activities are now inaccessible. This represents the most significant challenge to the project's successful implementation to date.
09/06/2025 GOALS project YAR and YFR are accepted by the Science Fund of the Republic of Serbia.
09-16/06/2025 Đ. Vučković initiated the writing process for an article related to the Schrödinger type propagators.
10-21/06/2025 N. Teofanov worked on the future project with E. Nabizadeh Morsalfard, C. Pfeuffer, and J. Toft.
12/06/2025 A formal celebration of the official classification of Kragujevac Journal of Mathematics as an M21-ranked journal for the year 2023 was held with the presence of members of the editorial board, representatives of the University Rectorate, and the Faculty of Sciences, University of Kragujevac, Dean’s Office.
13/06/2025 "Shift-Invariant Subspaces of Sobolev Spaces and Shift-Preserving Operators" by A. Aksentijević, S. Aleksić and S. Pilipović, is published in the book Analysis, Approximation, Optimization: Computation and Applications (Springer Optimization and its Applications vol. 224).
20/06/2025 The paper "Exploring student understanding of limits and derivatives through examples and pedagogical commentary" by S. Aleksić, is submitted to Journal of Educational Studies in Mathematics and Applied Calculus.
23–27/06/2025 F. Tomić and S. Tutić worked on their new manuscript.
24/6/2025 "Topology and Regularity for Generalized Ultradistribution Algebras" by S. Pilipović, D. Risteski, D. Scarpalezos, and M. Žigić is accepted for publication in Monatshefte für Mathematik.
24/06/2025 "Ultradifferentiable functions via the Laguerre operator" by S. Jakšić, S. Pilipović, N. Teofanov and Đ. Vučković, is accepted for publication in Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas (RACSAM).
26/06/2025 S. Tutić gave a lecture “A construction of orthonormal Wavelets in Extended Gevrey space” at the Department of Mathematics Giuseppe Peano, Torino University, Torino, Italy.
27/06/2025 Monday meeting of Friday – F. Tomic initiated and hosted a team members meeting.
27/6/2025 Project proposal SOFTA for Multilateral Cooperation in the Danube Region is approved for funding. N. Teofanov is the leader and M. Caković, S. Tutić and M. Žigić are Serbian team members.

MAY 2025

01/05/2025 Revised version of research article "Ultradifferentiable functions via the Laguerre operator" by S. Jakšić, S. Pilipović, N. Teofanov, and Đ. Vučković is submitted to RACSAM.
05-31/05/2025 S. Tutić visits Giuseppe Peano Department of Mathematics, University of Torino, Italy, within Erasmus+ students' traineeship program.
07-09/05/2025 N. Teofanov, F. Tomić, and M. Žigić worked on proofreading of "Gelfand–Shilov Spaces for Extended Gevrey Regularity".
07-21/05 S. Jakšić visited Ghent Analysis and PDE Center at Ghent University, Belgium.
07-30/05/2025 S. Tutić and S. Coriasco organize meetings regularly during S. Tutić's visit to Torino.
11/05/2025 S. Tutić had an online Zoom meeting with Prof. Pilipović and Prof. Prangoski to discuss the wave front set for tensor products of distributions.
12/05/2025 N. Teofanov, S. Tutić, M. Žigić, and S. Aleksić participated in the Generalized Functions Online Workshop. M. Žigić acted as a chairwoman, and S. Aleksić gave a lecture, "Some properties of finitely generated shift-invariant spaces".
13-20/05/2025 Đ. Vučković and S. Jakšić worked on their new article on Schrödinger-type propagators.
15-23/05/2025 C. Pfeuffer, N. Teofanov, and J. Toft worked on proofread corrections for Norm estimates for quasi-Banach modulation spaces and Wiener-Lebesgue spaces.
16/05/2025 GOALS project annual reports YAR1 and YFR1 are sent by post to the Science Fund of the Republic of Serbia.
14/05/2025 A. Aksentijević applied with his dissertation "Contributions to the theory of shift-invariant spaces" for the prestigious International Stefan Banach prize.
15/05/2025 M. Žigić signed a contract with the Faculty of Sciences, University of Novi Sad, for employment as an Associate Professor for five years.
19/05/2025 Manuscript entitled "Convolution and product in finitely generated shift-invariant spaces", by A. Aksentijević, S. Aleksić, and S. Pilipović, is submitted to Mediterranean Journal of Mathematics.
19/05/2025 S. Jakšić participated in Microlocal Day #13 at the University of Ghent with the lecture "A brief introduction to Pilipovic spaces on positive orthants".
19/05/2025 C. Pfeuffer, N. Teofanov, J. Toft, and E. Nabizadeh Morsalfard agreed to work on a new research project.
20-31/05/2025 A. Aksentijević continues his work on the topic of Sampling in shift-invariant spaces of Sobolev type.
21/05/2025 Research article "Gelfand–Shilov Spaces for Extended Gevrey Regularity" by N. Teofanov, F. Tomić, and M. Žigić is published online.
22/05/2025 S. Tutić gave a public lecture "Introduction to Wavelets" at PhD seminar for Master's and doctoral students at the Giuseppe Peano Department of Mathematics, University of Torino.
26/05/2025 Monday meetings – Discussions on the current situation at universities in Novi Sad and Belgrade, and ongoing research plans.
28-30/05/2025 F. Tomić and S. Tutić work on the preparations of the arxiv submission of their new paper.
30/05/2025 Paper "Norm estimates for quasi-Banach modulation spaces and Wiener-Lebesgue spaces" by C. Pfeuffer, N. Teofanov and J. Toft is published in Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques, issue 49 (2025), 49-69.
30/05/2025 Deadline for manuscript submissions for Recent Advances in Function Spaces and Their Applications is extended to 31 March 2026. The Special issue of the journal Axioms is edited by F. Tomić and S. Aleksić.

APRIL 2025

01-30/04/2025 S. Aleksić and A. Aksentijević worked collaboratively on the final version of the research paper entitled "Convolution and Product in Finitely Generated Shift-Invariant Spaces".
02/04/2025 N. Teofanov and V. Turunen discussed the topic of toroidal time-frequency analysis.
03-09/04/2025 M. Žigić, F. Tomić and N. Teofanov submitted their manuscript "Extended Gelfand-Shilov spaces" to journal Axioms.
03-09/04/2025 S. Aleksić and A. Aksentijević worked on the final revision of the paper "Shift-invariant subspaces of Sobolev spaces and shift-preserving operators", which will be published in the book Analysis, Approximation, Optimization: Computation and Applications.
03,16,23/04/2025 S. Tutić and F. Tomić discussed the structure of their joint paper, including titles, subtitles, and their contents.
08/04/2025 GOALS team members organized and participated in Time-Frequency Analysis Scientific Workshop with lectures:

Suzana Aleksić - "Convolution and product in finitely generated shift-invariant spaces",

Đorđe Vučković - "Schrödinger propagator for the Laguerre operator",

Milica Žigić - "Gelfand Shilov spaces for extended Gevrey regularity".

09/04/2025 S. Tutić met Prof. S. Pilipović and Prof. S. Coriasco and discussed in detail the responsibilities of S Tutić regarding his stay in Turin.
11/04/2025 We received referees’ reports on the paper "Ultradifferentiable functions via the Laguerre operator".
11-29/04/2025 Đ. Vučković and N. Teofanov worked on the revision of the paper "Ultradifferentiable functions via the Laguerre operator".
14/04/2025 Monday Meetings: current activities related to research manuscripts ot tema members and plans for the near future.
16/04/2025 N. Teofanov and V. Turunen discussed their future cooperation.
22/04/2025 Science Fund of the Republic of Serbia informed us that the GOALS Year Administrative Report and Year Financial Report are conditionally accepted.
24/04/2025 Science Fund of the Republic of Serbia informed us that GOALS is selected for an external revision.
29/04/2025 "New Zemanian Type Spaces and the Quasiasymptotics for the Fractional Hankel Transform" by S. Atanasova, S. Jakšić, S. Maksimović, and S. Pilipović is submitted to arXiv.
29/04/2025 "Abelian and Tauberian Results for the Fractional Hankel Transform of Generalized Functions" by S. Atanasova, S. Jakšić, S. Maksimović, and S. Pilipović is submitted to arXiv.
30/04/2025 "Convolution and product in finitely generated shift-invariant spaces" by A. Aksentijević, S. Aleksić, and S. Pilipović is submitted to arXiv.

MARCH 2025

03-31/03/2025 S. Aleksić and A. Aksentijević worked on a new research paper "Convolution and product in finitely generated shift-invariant (FGSI) spaces".
03-31/03/2025 S. Jakšić worked on the manuscript "Abelian and Tauberian type results for the fractional Hankel transform".
04/03/2025 Decision of the Senate of the University of Novi Sad on the appointment of M. Žigić to the position of Associate Professor.
05/03/2025 F. Tomić, N. Teofanov, and M. Žigić discussed their joint research paper on the manuscript.
10/03/2025 Monday Meetings – S. Jakšić presented Schrodinger propagators for the Laguerre operator in the setting of ultradistri-butions.
11/03/2025 N. Teofanov worked with Ville Turunen from Aalto University on toroidal time-frequency representations.
13/03/2025 GOALS team members started preparations for the upcoming Time-Frequency Analysis Scientific Workshop in Novi Sad.
10-14/03/2025 F. Tomić, N. Teofanov, and M. Žigić worked on the manuscript "Gelfand-Shilov spaces for extended Gevrey regularity".
14/03/2025 Đ. Vučković and S. Jakšić discuss ideas and read articles related to harmonic oscillator propagators.
14/03/2025 N. Teofanov had a Zoom meeting with Hans Feichtinger and Anupam Gumber regarding their cooperation.
15/03/2025 Preparation for the submission of the article "Frobenius Logarithmic Norm" by J. Stojanov, M. Žigić, D. Risteski.
15/03/2025 S. Tutić and S. Pilipović discussed wavefront sets in the tensor product of two given distributions.
17/03/2025 Monday Meetings - S. Tutić presented his seminar paper and tasks for his dissertation.
17/03/2025 "Gelfand-Shilov spaces for extended Gevrey regularity" submitted to Arxiv.
18/03/2025 F. Tomić and S. Tutić worked on their manuscript.
20/03/2025 S. Tutić discussed with Professor Sandro Coriasco from the University of Torino regarding his visit to Torino.
20-31/03/2025 M. Žigić worked on a revision of the article "Topology and Regularity for Generalized Ultradistribution Algebras" by S. Pilipović, D. Risteski, D. Scarpalezos, M. Žigić.
20-31/03/2025 F. Tomić, N. Teofanov, and M. Žigić worked on the preparation of Gelfand-Shilov spaces for extended Gevrey regularity for submission to a journal.
24/03/2025 F. Tomić prepared the website for the upcoming GOALS scientific workshop.
25-31/03/2025 Đ. Vučković is resuming work on the new manuscript and preparing a presentation titled "Schrödinger propagator for the Laguerre operator" for the Time-Frequency Analysis Scientific Workshop.
27/03/2025 F. Tomić and S. Tutić worked on their manuscript.
27/03/2025 S. Jakšić worked on the preparation for her visit to Ghent University, and future work with Peter Balazs (Austrian Academy of Science) and Daniel Abreau (University of Vienna).
28/03/2025 The website for the scientific workshop is launched: https://sites.google.com/view/tfa2025/home.
31/03/2025 Monday Meetings - GOALS team members discussed the negative influence of Uredba o izmeni Uredbe o normativima i standardima uslova rada univerziteta i fakulteta za delatnosi koje se finansiraju iz budžeta from March 24, 2025, on the overall scientific work in Serbia.

FEBRUARY 2025

01-17/02/2025 All GOALS team members worked on the project’s Annual Report.
01-18/02/2025 S. Tutić worked on his seminar paper.
02-07/02/2025 N. Teofanov worked with J. Toft and C. Pfeuffer on their joint preprint before submission to a journal.
03-28/02/2025 A. Aksentijević and S. Aleksić worked on a paper "Convolution and product in finitely generated shift-invariant spaces".
05/02/2025 Prof. Sandro Coriasco proposed dates of his visit to Novi Sad.
06/02/2025 M. Žigić discussed with J. Dimitrić topics related to her PhD studies.
10, 24/02/2025 N. Teofanov, M. Žigić and F. Tomić worked on the manuscript “Gelfand-Shilov spaces for extended Gevrey regularity”.
11-14, 19/02/2025 F. Tomić and S. Tutić work on their joint manuscript.
13/02/2025 A visit of Prof. T. Pogany to Novi Sad is scheduled for May 2025.
14,24/02/2025 S. Aleksić and A. Aksentijević met with Professor S. Pilipović. They discussed "Convolution and product in finitely generated shift-invariant spaces" and "Sampling in shift-invariant spaces of Sobolev type".
18/02/2025 Đ. Vučković and S. Jakšić discussed ideas and reading articles related to the harmonic oscillator propagators.
19-26/02/2025 Đ. Vučković resuming preparatory work for the new manuscript.
24/02/2025 Team members meeting – reports on the previous work and future plans.
25/02/2025 S. Tutić studied master thesis "The Wave Front Set and Oscillatory Integrals" by M. Vestberg.
26/02/2025 A. Aksentijević applied for the Isaac Congress.

JANUARY 2025

02/01/2025 New version of the paper "Norm estimates for a broad class of modulation spaces, and continuity of Fourier type operators" by Joachim Toft, Christine Pfeuffer, Nenad Teofanov, is uploaded on arXiv.
03-17/01/2025 Stefan Tutić, Milica Caković, Milica Žigić, and Nenad Teofanov worked on a project proposal for multilateral cooperation in the Danube region. The proposal includes 26 team members from five countries (Austria, Croatia, the Czech Republic, France, and Serbia).
3-24/01/2025 A. Aksentijević worked on a new paper "Convolution and product in finitely generated shift-invariant spaces".
9-10/01/2025 A. Aksentijević filled out and submitted the documentation for the Promotion to Doctor of Science.
13-20/01/2025 Đorđe Vučković performed preparatory work for starting a new manuscript within WP1, including gathering ideas and reading articles related to the harmonic oscillator propagators.
15,20/01/2025 Filip Tomić, Milica Žigić, and Nenad Teofanov worked on their paper on Gelfand-Shilov spaces for extended Gevrey regularity.
17-27/1/2025 Work on revision of the paper "Topology and regularity for generalized ultradistribution algebras" by S. Pilipović, D. Risteski, D. Scarpalezos, and M. Žigić.
16-26/01/2025 Stefan Tutić worked on his PhD studies seminar paper.
16-31/01/2025 All team members work on the GOALS annual year report.
17/01/2025 Proposal for project SOTFA - Signals, Operators, and Frames via Time-Frequency Analysis is submitted to NITRA.
17-31/01/2025 Smiljana Jakšić worked on the manuscript "Abelian and Tauberian type results for the Fractional Hankel transform". It is a joint work with Sanja Atanasova, Snježana Maksimović, and Stevan Pilipović.
20-30/01/2025 Suzana Aleksić (TM5) and Aleksandar Aksentijević (TM6) studied the paper by C. de Boor, R. A. DeVore, and A. Ron, "The Structure of Finitely Generated Shift-Invariant Spaces in L^2(R^n)", J. Funct. Anal., 37–78, 1994. Using this paper, TM5 and TM6 are preparing their submission entitled "Convolution and product in finitely generated shift-invariant spaces".
22/01/2025 Stefan Tutić and Filip Tomić worked on their joint paper.
27-31/01/2025 A. Aksentijević worked on "Sampling in shift-invariant spaces of Sobolev type".
29/01/2025 Publication of paper: Jakšić, S., Pilipović, S., Teofanov, N., Vučković, Đ. (2025). "On the Iterates of the Laguerre Operator". In: Kumar, V., Rottensteiner, D., Ruzhansky, M. (eds) Pseudo-Differential Operators and Related Topics. PSORT 2024. Trends in Mathematics, vol 8. Birkhäuser, Cham.

DECEMBER 2024

01-30/12/2024 N. Teofanov, M. Žigić, S. Tutić, and M. Caković initiated and worked on the application to the call for multilateral cooperation in the Danube region. The project title is SOFTA—Signals, Operators and Frames via Time-Frequency Analysis, and it involved 26 researchers from 5 countries.
01-25/12/2024 A. Aksentijević was preparing the defense of his dissertation.
01-30/12/2024 N. Teofanov worked with J. Toft and C. Pfeuffer on papers Norm estimates for a broad class of modulation spaces, and continuity of Fourier type operators and Norm estimates for quasi-Banach modulation spaces, and Wiener-Lebesgue Spaces.
03/12/2024 S. Tutić discussed a possible topic for his PhD thesis with Prof. S. Pilipović and Prof. B. Prangoski.
05-26/12/2024 S. Aleksić and A. Aksentijević had discussions about possible research topics for future work.
05-23/12/2024 S. Jakšić worked on the preprint “Abelian and Tauberian type results for the fractional Hankel transform” with S. Maksimović, S. Atanasova, and S. Pilipović.
06/12/2024 Students began a blockade of the Faculty of Sciences, University of Novi Sad.
06/12/2024 N. Teofanov, M. Žigić, and F. Tomić participated in an online meeting organized by the Science Fund of the Republic of Serbia.
09/12/2024 Students began a blockade of the Faculty of Technical Sciences, University of Novi Sad.
09/12/2024 Students began a blockade of the Faculty of Forestry, University of Belgrade.
09-13/12/2024 Dj. Vučković was engaged in preparatory work to start a new manuscript within WP1 by gathering ideas and reading articles relating to the harmonic oscillator propagators.
09-10/12/2024 N. Teofanov, M. Žigić, and F. Tomić started preparation for the GOALS annual report.
11/12/2024 N. Teofanov updated the overleaf version of the preprint with A. Gumber and H. Feictinger.
11/12/2024 Students began a blockade of the Faculty of Science University of Kragujevac.
12/12/2024 UNSFS approved the application to the call for multilateral cooperation in the Danube region.
15-31/12/2024 S. Tutić worked on a seminar paper on Wave-front sets.
17/12/2024 Student-led blockades started at TFZR and are currently ongoing.
17/27/12/2024 S. Tutić and F. Tomić discussed their joint scientific work.
17/12/2024 Online publication of the paper "On the product of periodic distributions. Product in shift-invariant spaces" by A. Aksentijević, S. Aleksić and S. Pilipović, in Filomat.
24/12/2024 The Science Fund of the Republic of Serbia announced a delay in the procedure for submitting the annual report.
26/12/2024 A. Aksentijević defended his PhD thesis at the Faculty of Science of the University of Kragujevac.
26/12/2024 N. Teofanov acted as the head of the defense committee for A. Aksentijević’s PhD thesis. S. Aleksić and S. Pilipović were co-advisors for the thesis.
30/12/2024 N. Teofanov and Ville Turunen worked on toroidal time/frequency analysis.

NOVEMBER 2024

01-15/11/2024 GOALS team members worked on the preparation of the first annual GOALS workshop.
01-15/11/2024 GOALS team members prepared their lectures for the first annual GOALS workshop.
01-15/11/2024 Filip Tomić prepared the website for the GOALS workshop, and Stefan Tutić prepared the Book of Abstracts.
01-15/11/2024 S. Aleksić and A. Aksentijević had meetings where they discussed problems in the work on Sampling in shift-invariant spaces of Sobolev type.
02/11/2024 Manuscript “Ultradifferentiable functions via the Laguerre operator” by S. Jakšić, S. Pilipović, N. Teofanov, and Đ. Vučković submitted to RACSAM.
04,08,26/11/2024 F. Tomić and S. Tutić worked on their joint paper.
06/11/2024 A. Aksentijević has been chosen for the position of Research Assistant for the scientific field of Mathematical Sciences at the Institute of Mathematics and Informatics of the Faculty of Sciences, University of Kragujevac.
11/11/2024 F. Tomic and N. Teofanov discussed their future paper.
11/11/2024 N. Teofanov discussed with J. Toft and C. Pfeuffer about their joint contribution “Norm estimates for quasi-Banach modulation spaces and Wiener-Lebesgue spaces”.
15/11/2024 S. Tutić is selected for the Erasmus+ KA131 program for a two-month student internship in Torino.
17/18/2024 Smiljana Jakšić worked with Snježana Maksimović on Fractional Henkel transform.
18-19/11/2024 GOALS workshop, organized together with Ceremonial Meeting dedicated to Academician Bogoljub Stanković:

N. Teofanov gave a public lecture "Наслеђе академика Богољуба Станковића и пројекат GOALS".

Đ. Vučković's oral presentation entitled "On the iterates of the Laguerre operator" was given at the GOALS workshop dedicated to professor Bogoljub Stanković.

F. Tomić and M. Žigić presented the lecture "Проширење Жевреових простора".

S. Tutić gave a presentation under the title "Konstrukcija jedne klase ortonormiranih talasića".

A. Aksentijević gave a lecture entitled "Shift-invariant spaces of Sobolev type".

19/11/2024 Smiljana Jakšić gave a public lecture “Плес квантних честица” as a part of the annual GOALS workshop and manifestation Days of Mathematics in Novi Sad.
20/11/2024 Board for the defense of the PhD thesis of A. Aksentijević agreed to schedule the defense for December 26th, 2024.
20/11/2024 N. Teofanov initiated an application to a call for multilateral cooperation in the Danube region.
24/11/2024 S. Tutić had discussions with Prof. Pilipović regarding his seminar paper.
25/11/2024 Monday meetings – N. Teofanov "Grossmann-Royer transform and extended Gelfand-Shilov type spaces".
25-30/11/2024 S. Aleksić and A. Aksentijević had meetings where they discussed problems in the work on Sampling in shift-invariant spaces of Sobolev type.
28/11/2024 Deadline for Special Issue: Recent Advances in Function Spaces and Their Applications of Journal Axioms, edited by F. Tomić and co-edited by S. Aleksić, is extended to 05/31/2025.

OCTOBER 2024

01/10/2024 Proofread of the article "On the Iterates of the Laguerre Operator," which will be published in Pseudo-Differential Operators and Related Topics.
01-25/10/2024 S. Aleksic and A. Aksentijević worked on the problem "Sampling in shift-invariant spaces of the Sobolev type".
01– 21/10/2024 S. Tutić worked on the application to the Erasmus+ program KA131 for students' traineeship at the University of Torino with Professor S. Coriasco.
03/10/2024 N. Teofanov, F. Tomic, and M. Žigic proposed an abstract for their upcoming contribution, "Extended Gelfand-Shilov type spaces and their Fourier transform invariance".
07/10/2024 Monday meetings – Presentation of new results by L. Neyt, J. Toft, and J. Vindas.
09/10/2024 Meeting at SANU Novi Sad branch, concerning the joint organization of the research workshop.
10-14/10/2024 N. Teofanov discussed with C. Pfeuffer and J. Toft about updates on "Norm estimates for a broad class of modulation spaces, and continuity of Fourier type operators".
10-15/10/2024 Discussions with Prof. de Gosson on future joint work.
10-27/10/2024 S. Jakšić, Đ. Vučković and N. Teofanov are working on the final version of the manuscript "Ultradifferentiable function via the Laguerre operator".
14/10/2024 Monday meetings – Organization of GOALS workshop and discussion on new calls from the Science Fund of the Republic of Serbia.
15-31/10/2024 Organization of GOALS workshop. Website is launched: https://sites.google.com/view/goalsworkshop.
16/10/2024 Meeting with Jan Šimonji related to the promotion of his book "O matematike trochu inak".
16/10/2024 F. Tomić was invited by Katarina Petranović to lead her PhD studies.
17/10/2024 Publication of paper "The Spaces of Ultradistributions Over R+ d and the Weyl Calculus of Pseudo-Differential Operators" by S. Jakšić and S. Pilipović. In: Chatzakou, M., Ruzhansky, M., Stoeva, D. (eds) Women in Analysis and PDE, Birkhäuser, Cham (2024) 197-207. https://doi.org/10.1007/978-3-031-57005-6_21
20-31/10/2024 N. Teofanov worked on the preprint "Norm estimates for quasi-Banach modulation spaces and Wiener-Lebesgue spaces", which will be submitted to the Bulletin of Serbian Academy of Sciences and Arts.
21/10/2024 M. Žigić presented current results within the research under the working title "An interpolation problem in the extended Gevrey classes" at the regular Monday meetings of the GOALS team.
23/10/2024 S. Tutić and F. Tomić discuss about ongoing joint paper. Study of the paper by Fukuda, Kinoshita, and Uehara, "On the wavelets having Gevrey regularities and subexponential decays".
24/10/2024 Faculty of Science in Kragujevac posted the committee's report on the PhD thesis "Contributions to the theory of shift-invariant spaces" for public view.
27/10/2024 Revision of the paper "Topology and regularity for generalized ultradistribution algebras" by S. Pilipović, D. Risteski, D. Scarpalezos, and M. Žigić.
27/10/2024 S. Tutić worked with S. Pilipović on the topic for a seminar paper.
28-31/10/2024 A. Aksentijević prepares the presentation for the Ceremonial meeting dedicated to Academician Bogoljub Stanković and the scientific workshop.
28/10/2024 Monday meetings – Organization of GOALS workshop.

SEPTEMBER 2024

01-16/09/2024 Stefan Tutić worked on his PhD exam on Partial differential equations and a seminar paper on wave-front sets.
01-30/09/2024 Aleksandar Aksentijević studied papers related to the topic "Sampling theorems in shift-invariant spaces".
03/09/2024 Spectral analysis of pseudodifferential operators, discussion on the ideas of Prof. Pilipović, Teofanov, and Tomić.
05-25/09/2024 Filip Tomić and Stefan Tutić worked on a future manuscript on new examples and applications of extended Gevrey regular functions.
05-13/09/2024 Đorđe Vučković - work on the manuscript "Ultradifferentiable function via the Laguerre operator".
09/09/2024 Stefan Tutić attended a Webinar on the Erasmus+ programme organized by the Tempus Foundation.
13,17,24/09/2024 - Suzana Aleksić and Aleksandar Aksentijević discussed the paper "Sampling theorems with derivatives in shift-invariant splines generated by periodic exponential B-spline" by K. Grochenig and I. Shafkulovska, and the PhD thesis of Irina Shafkulovska.
16-20/09/2024 Milica Žigić participated in the International Conference on Generalized Function (GF2024), Torino, Italy, with the lecture "Extended Gevrey regularity".
16-20/09/2024 Nenad Teofanov participated in the International Conference on Generalized function (GF2024), Torino, Italy, with the lecture "A friendly guide to Pilipovic spaces".
16-20/09/2024 Smiljana Jakšić participated in the International Conference on Generalized Function (GF2024), Torino, Italy, with the lecture "Why do we need Pilipović spaces on positive orthants? ".
16-20/09/2024 Nenad Teofanov had discussions with Diana Stoeva, Christine Pfeuffer, and Joachim Toft related to ongoing and future joint research.
16-20/09/2024 Filip Tomić worked on the preparation of a preprint with Nenad Teofanov and Stevan Pilipović (Spectral analysis of PSDo with symbols of superexponential growth).
26-30/09/2024 Smiljana Jakšić and Đorđe Vučković worked independently on the manuscript "Ultradifferentiable function via the Laguerre operator".
27/09/2024 Stefan Tutić started activities related to the Erasmus+ exchange program.
30/09/2024 Monday meeting on the topic “What did we do last summer?”.

AUGUST 2024

01-19/08/2024 S. Aleksić and A. Aksentijević worked on the final version of the PhD thesis "Contributions to the theory of shift-invariant spaces".
01-04/08/2024 Meeting of coordinators: N. Teofanov and Maurice deGosson.
07-15/08/2024 Đorđe Vučković participated in the 8th Workshop on Graph Theory and Application, Ohrid, North Macedonia, with the lecture "On the iterates of the Laguerre operator" (https://x.com/GoalsP2727/status/1822335487446536658).
09/08/2024 TeX file for a future manuscript by F. Tomić, N. Teofanov, and M. Žigić is created on overleaf.
09/08/2024 The Science Fund of the Republic of Serbia conditionally accepted the GOALS report for 01/12/2023 – 31/05/2024.
16-23/08/2024 Đorđe Vučković works on the manuscript "Ultradifferentiable function via the Laguerre operator".
19-23/08/2024 F. Tomić worked on the manuscript "Spectral analysis of ψDO’s with symbols with superexponential growth", joint work with S. Pilipović and N. Teofanov.
26/08/2024 Revised version of the GOALS report was uploaded to the Science Fund portal.
26/08/2024 Joint meeting of WP Coordinators in Novi Sad.
26/08/2024 The paper "Ultradistributions on Rn+ , hypoellipticity and solvability through series expansions on ultradistributions" by S. Pilipović and Đ. Vučković is published online in the Journal of Pseudo-differential Operators and Applications (M22).
29/08/2024 PhD School of Mathematics appointed a committee for the defense of PhD thesis "Contributions to the theory of shift-invariant spaces".
29-30/08/2024 Suzana Aleksić participated in the First Conference on Mathematics and Computer Science teaching, TEMATCOM, with the lecture "Prilozi nastavi matematike: Diferencijalni i integralni račun".
M. Žigić worked on the revision of the paper "Topology and regularity for generalized ultradistribution algebras" submitted to Monatshefte Fur Mathematik (M22).
S. Jakšić worked with Peter Balazs (ARI) on topics of possible future collaborations.
S. Tutić was preparing for the exams within his PhD Studies.

JULY 2024

01-05/07/2024 Revision of the payment schedule (N. Teofanov, F. Tomić, M. Žigić).
01-31/07/2024 A. Aksentijević works on the final version of the PhD thesis.
03-12/07/2024 S. Jakšić, N. Teofanov and Đ. Vučković work on the manuscript "Ultradifferentiable function via the Laguerre operator".
04-26/07/2024 S. Tutić discussion with Academician S. Pilipović regarding the topic of a seminar paper within PhD studies.
05-11/07/2024 F. Tomić and S.Tutić work on the topic of a new manuscript.
05-23/07/2024 N. Teofanov worked on a joint paper with J. Toft and C. Pfeuffer.
08-31/07/2024 S. Pilipović, N. Teofanov, and F. Tomić started to work on a new manuscript.
12/07/2024 The Payment schedule is accepted by the Science Fund of the Republic of Serbia.
12/07/2024 Preprint "Ultradifferentiable functions via the Laguerre operator" by S. Jakšić, S. Pilipović, N. Teofanov, and Đ. Vučković appeared on arXiv.
15-19/07/2024 F. Tomić participated in the 9th European Congress of Mathematics (9ECM 2024) in Seville, Spain, with poster ‘’Theory and application of the extended Gevrey regularity’’.
15-19/07/2024 S. Aleksić participated in the 9th European Congress of Mathematics (9ECM 2024) in Seville, Spain, with the lecture “Wave fronts and shift-invariant subspaces of Sobolev spaces”.
15/07/2024 Preprint "On a broad family of quasi-Banach modulation spaces" by J. Toft, N. Teofanov, and C. Pfeuffer appeared on arXiv.
18/07/2024 S. Tutić attended a webinar on Erasmus+ and CEEPUS programs organized by Tempus Foundation.
20/07/2024 N. Teofanov, M. Žigić, and F. Tomić launched an overleaf file for a new manuscript.
25/07/2024 Manuscript “Frobenius logarithmic norm” by J. Stojanov, M. Žigić, and D. Risteski is submitted.
29/07/2024 "Ultradistributions on R+ n, hypoellipticity and solvability through series expansions on ultradistributions" by S. Pilipović and Đ. Vučković is accepted for publication in the Journal of Pseudodifferential Operators and Applications.
29-31/07/2024 N. Teofanov participated as an invited speaker at WHO 2024, Istanbul, Turkey.
29-31/07/2024 Đ. Vučković is preparing for the oral presentation "On the iterates of the Laguerre operator" at the Macedonian workshop on Graph Theory and Applied Math.

JUNE 2024

01/06/2024 Nenad Teofanov is a team member of Maurice de Gosson’s project, Polar Duality and Quantum Mechanics
01/06/2024 Filip Tomić participated in the conference Mathematics in Engineering: Theory and Applications (META) with the lecture "A short note on the Extended Gevrey regularity"
01/06/2024 Stefan Tutić passed the exam Pseudodifferential Operators within his PhD Programme
02-04/06/2024 Suzana Aleksić participated in the 8th International Conference, Contemporary Problems of Mathematics, Mechanics and Informatics (CPMMI 2024) with lecture Products in shift-invariant spaces
03/06/2024 Proof read of Band-limited wavelets beyond Gevrey regularity by N. Teofanov, F. Tomić and S. Tutić, accepted for publication in International Journal of Wavelets, Multiresolution and Information Processing
03-07/06/2024 Filip Tomić, Milica Žigić, and Nenad Teofanov were writing the 6-month report for the Science Fund of the Republic of Serbia
01-15/06/2024 Suzana Aleksić was reviewing the PhD thesis "Contributions to the theory of shift-invariant spaces" of candidate Aleksandar Aksentijević
01-18/06/2024 Aleksandar Aksentijević was working on the revision of his PhD thesis, "Contributions to the theory of shift-invariant spaces"
05/06/2024, 17/06/2024, 24/06/2024 Smiljana Jakšić, Nenad Teofanov, and Đorđe Vučković discussions related to the manuscript with working title Pilipović spaces on R+ n
09/06/2024 Đorđe Vučković submitted the manuscript "Ultradistributions on R+ n, Hypoellipticity and solvability through series expansions on ultradistributions" to the Journal of Pseudo-Differential Operators and Applications
12/06/2024 Filip Tomić and Stefan Tutić discuss examples in extended Gevrey classes
14/06/2024, 26/06/2024, 27/06/2024 Christine Pfeuffer, Nenad Teofanov, and Joacim Toft had a Zoom discussion on the manuscript Fundamental properties for quasi-Banach modulation spaces
17/06/2024 Band-limited wavelets beyond Gevrey regularity is published online
18-21/06/2024 Nenad Teofanov visited the University of Vienna and discussed topics of mutual research interest with H. G. Feichtinger, M. de Gosson, D. Abreau, and M. Speckbacher
19-22/06/2024 Smiljana Jakšić and Aleksandar Aksentijević participated in the 15th Serbian Mathematical Congress (15.SMAK) with lectures (book of abstracts)
25/06/2024 Filip Tomić was a member of the committee for the defense of the PhD thesis of Milica Lučić

MAY 2024

02-14/05/2024 Smiljana Jakšić visited Ghent Analysis & PDE Center (Ghent University, Belgium) and participated in the conference Women in Mathematics 2024, with lecture Global regularity of Weyl pseudo-differential operators in the Gelfand-Shilov setting. Plans for future cooperation were discussed with Michael Ruzhansky, the head of the group.
06/05/2024 The paper Stochastic evolution equations with Wick-analytic nonlinearities, by Milica Žigić and her coauthors, is published online in Stochastics.
08/05/2024 Special Issue: Recent Advances in Function Spaces and Their Applications of Journal Axioms is announced. Guest Editors are Filip Tomić and Suzana Aleksić.
09/05/2024 Band-limited wavelets beyond Gevrey regularity by Nenad Teofanov, Filip Tomić, Stefan Tutić is accepted for publication in the International Journal of Wavelets, Multiresolution and Information Processing.
10/05/2024 Milica Žigić participated Generalized Functions Online Workshop.
10-16/05/2024 Đorđe Vučković visited Research Group Functional Analysis (Ghent University, Belgium) and gave a lecture "On the Iterates of Laguerre operator". Plans for future cooperation were discussed with Jasson Vindas, the head of the group.
13/05/2024 Monday meetings: Major revision of paper submitted to Axioms.
16/05/2024 Nenad Teofanov participated in the webinar Proposal Writing Workshop Series – Proposal Writing and Project Planning.
19/05/2024 Stefan Tutić discussed his exam and plans for future work with Prof. S. Pilipović.
20/05/2024 Monday meetings: Smiljana Jakšić and Đorđe Vučković – impressions from Ghent.
20/05/2024 Public lecture Da li bi ste odbili Klejovu nagradu? by Nenad Teofanov, Mathematics Spring Festival.
21/05/2024 Nenad Teofanov: Zoom meeting with J. Toft and C. Pfeuffer related to paper in preparation.
22/05/2024 University of Kragujevac approved the topic of Aleksandar Aksentijević's thesis "Contributions to the theory of shift-invariant spaces“ and advisors: Suzana Aleksić and Stevan Pilipović.
23/05/2024 Nenad Teofanov applied for ICTP-INdAM Collaborative Grants and Research in Pairs 2025.
24/05/2024 The paper An introduction to extended Gevrey regularity by N. Teofanov, F. Tomić, and M. Žigić is published online in Axioms.
25/05/2024 Đorđe Vučković public lecture Na talasima promene trigonometrijskih funkcija, Mathematical May day in Zrenjanin.
28/05/2024 Survey article Shift-invariant subspaces of Sobolev type, by Aleksandar Aksentijević and Suzana Aleksić, is posted on arXiv.

APRIL 2024

01/04/2024 Monday meetings: Celebrating Milica Žigić publication in Journal of Mathematical Analysis and Applications
10-12/04/2024 HANDS 2024, participation in Scientific and Organizing Committees, Smiljana Jakšić lecture - Global regularity of Weyl pseudo-differential operators with radial symbols in each phase-space variable
11/04/2024 Discussions with Diana Stoeva on frame multipliers
12-14/04/2024 Discussions with Joachim Toft on Wiener amalgam spaces
17/04/2024 Discussions with Sandro Coriasco on future cooperation
22/04/2024 Monday meetings: Submission plans
23/04/2024 Paper On the product of periodic distributions. Product in shift-invariant spaces, is accepted for publication in FILOMAT
25/04/2024 Submission of research paper An introduction to extended Gevrey regularity, by Nenad Teofanov, Filip Tomić, and Milica Žigić
28/04/2024 Submission of extended abstract: Smiljana Jakšić, Stevan Pilipović, Nenad Teofanov, Đorđe Vučković, On the iterates of the Laguerre operator

MARCH 2024

04/03/2024 Monday meetings: Stefan Tutić - On a construction of a Gevrey type function; Djordje Vučković – Nontriviality of Pilipović spaces on positive orthants.
11/03/2024 Monday meetings: Filip Tomić – Applications of extended Gevrey regularity.
15/03/2024 Research paper Dilation estimates for Wiener amalgam spaces of Orlicz type by B. Aris, N. Teofanov, and S. Oztup, is accepted for publication in Sampling Theory, Signal Processing, and Data Analysis.
15/03/2024 Preprint On the product of periodic distributions. Product in shift-invariant spaces by A. Aksentijević, S. Aleksić, and S. Pilipović is posted on arXiv.org.
15/03/2024 Proposal for the topic of the PhD thesis of A. Aksentijević is accepted by the Doctoral School of Mathematics.
18/03/2024 Monday meetings: Organizing issues of HANDS 2024.
24/03/2024 Research paper Almost diagonalization of ΨDO's over various generalized function spaces by S. Pilipović, N. Teofanov, and F. Tomić, is accepted for publication in the Sarajevo Journal of Mathematics.
25/03/2024 Monday meetings: On equivalence of some norms in Gelfan-Shilov type spaces on positive orthants.
27/03/2024 Article Shift-invariant subspaces of Sobolev spaces and shift-preserving operators by A. Aksentijević, S. Aleksić, and S. Pilipović, is accepted for publication in the book Analysis, Approximation, Optimization: Computation and Applications - In Honor of Gradimir V. Milovanović on the Occasion of his 75th Anniversary (will be published as a part of the Springer Optimization and its Applications series).
28/03/2024 Research paper Generalized exponentially bounded integrated semigroups by M. Kostić, S. Pilipović, and M. Žigić, is accepted for publication in Journal of Mathematical Analysis and Applications.

FEBRUARY 2024

05/02/2024 Monday meetings: Đorđe Vučković – On iterates of the Laguerre operator.
11-16/02/2024 Nenad Teofanov visited ARI and NuHaG in Vienna. GOALS research objectives were presented to project partners: Peter Balazs, Hans Georg Feichtinger, Diana Stoeva, and Daniel Louis Abreau. Cooperation between GOALS and Challenges in Frame Multiplier Theory, CHAMP, is agreed.
21/02/2024 Online radionica Fonda za nauku – Upotreba portala za izveštavanje.
22/02/2024 Kreiran X nalog projekta @GoalsP2727.
26/02/2024 Nenad Teofanov – Basic notions of time-frequency analysis, lecture at Seminar Bogoljub Stanković.
26/02/2024 Key Members meeting – Q1 report: achievements, plans, challenges.
26/02/2024 Preprint Band-limited wavelets beyond Gevrey regularity by Nenad Teofanov, Filip Tomić, Stefan Tutić, is posted on arXiv.org.
28/02/2024 Preprint Almost diagonalization of ΨDO's over various generalized function spaces by Stevan Pilipović, Nenad Teofanov, Filip Tomić, is posted on arXiv.org.

JANUARY 2024

15/01/2024 Monday meetings: GOALS – the first month retrospective.
18/01/2024 Filip Tomić created the website for the conference HANDS 2024: https://sites.google.com/view/hands2024
22/01/2024 Monday meetings: Aleksandar Aksentijević – Shift-invariant subspaces on L^2(R^n).
24/01/2024 Aleksandar Aksentijević – Public presentation of PhD thesis topic at the University of Kragujevac.
29/01/2024 Monday meetings: Nenad Teofanov – On the decay of band-limited wavelets.
30/01/2024 Informal discussions on extended Gevrey regularity.

DECEMBER 2023

01/12/2023 The project GOALS is initiated and will run for three years.
04/12/2023 Submission of project proposal for bilateral cooperation Serbia/Croatia.
05/12/2023 Discussions with the Serbian Academy of Science and Arts Branch in Novi Sad about the joint organization of the international conference Harmonic Analysis and Distributions, HANDS 2024.
08/12/2023 Meeting with representatives of the Science Fund of the Republic of Serbia, link.
11/12/2023 Team members meeting about the initial activities within Work Packages.
18/12/2023 Team members meeting - Smiljana Jakšić - Overview of topics for WP1.
22/12/2023 Radionica - Upravljanje projektima i finansijama.
25/12/2023 Team members meeting - Aleksandar Aksentijević - Topic for the thesis.
13-26/12/2023 Discussions with Prof. Ville Turunen, Aalto University.

NOVEMBER 2023

20/11/2023 Suzana Aleksić - Frames and bases in Hilbert spaces, Dani matematike u Novom Sadu, seminar “Bogoljub Stanković”

Apstrakt: Cilj predavanja je da se kroz osnovne pojmove i tvrđenja teorije okvira u Hilbertovim i Banahovim prostorima ukaže na to da je teorija okvira veoma moćno sredstvo u analizi velikog broja prostora i distribucija. Biće navedene prednosti, ali i nedostaci okvira u odnosu na baze i uspostavljena veza između baza, ortonormiranih baza, Risovih baze i okvira u Hilbertovim prostorima. Daćemo uopštenje pojama okvira na Banahove prostore i karakterizaciju prostora kod kojih postoji Banahov okvir. Izložićemo dosadašnje rezultate o okvirima u nekim translaciono-invarijantnim prostorima, i dati originalne rezultate o karakterizaciji prostora generisanim translacijama funkcija koje čine okvir za translaciono-invarijante potprostore Soboljevog prostora. Zbog širokog polja primene teorije okvira, pre svega u signalnoj analize, diskutovaćemo neke moderne tehnike uzorkovanja i rekonstrukcije funkcija u translaciono-invarijantim prostorima.

22/11/2023 Stefan Tutić hosted the visit of pupils from the elementary school Jovan Dučić, Petrovaradin, to the Department of Mathematics and Informatics. He presented the maths curriculum and career options after graduating.
23/11/2023 Milica Žigić - STOHASTIČKE EVOLUCIONE JEDNAČINE SA NELINEARNOSTIMA VIKOVOG TIPA, seminar Stohastika sa primenama MI SANU

Apstrakt: Posmatraćemo nekoliko klasa nelinearnih stohastičkih diferencijalnih jednačina sa nelinearnostima koje proizilaze iz Vikovog proizvoda u okvirima teorije belog šuma. Jednačine koje posmatramo uključuju različite stohastičke verzije poznatih diferencijalnih jednačina, kao što su Fudžita jednačina, Fišer-KPP jednačina i druge. Koristeći teoriju S0-polugrupa, kao i evolucione sisteme dokazujemo postojanje i jedinstvenost rešenja posmatranih klasa stohastičkih PDJ u obliku haos ekspanzija. Dodatno, rešavali smo i linearne neautonomne SPDJ i dali nekoliko primera primene dobijenih rezultata.

OCTOBER 2023

04/10/2023 Nenad Teofanov, An introduction to localization operators, Seminar on analysis and geometry, Aalto University, Finland
04/10/2023 Suzana Aleksić participated in the event “Kroz prizmu nauke” upon the call of the Science Fund of the Republic of Serbia
16/10/2023 Stefan Tutić, Hiperfunkcije, Seminar “Bogoljub Stanković”

Apstrakt: Hiperfunkcije je uveo japanski matematičar Mikio Sato sa ciljem da napravi analognu teoriju Švarcovim distribucijama za kompleksne analitičke funkcije. U prvom delu predavanja biće izložena motivacija za njihovo uvođenje. Ideja je da se Dirakova distribucija i Furijeova transformacija mogu posmatrati kao vrednosti na rubu neke analitičke funkcije. U drugom delu posmatraće se reprezentacija distribucija preko analitičkih funkcija. U poslednjem delu predavanja, definisaće se pojam hiperfunkcije. Takođe, biće prikazani svi pojmovi koji su analogni u Švarcovoj teoriji distribucija. Na kraju, osvrnućemo se na Furijeovu transformaciju za hiperfunkcije.

10-16/10/2023 Arrangement with Novi Sad Mathematical Society for GOALS participation within Days of Mathematics
18-19/10/2023 Initiative for proposing a project of bilateral cooperation with Croatia
30/10/2023 Nenad Teofanov, Jedan uvod u operatore lokalizacije, Seminar “Bogoljub Stanković”

Apstrakt: Tema predavanja su operatori lokalizacije u kontekstu vremensko-frekvencijske analize. Uvodni deo je posvećen Furijeovim množiteljima. Furijeovi množitelji imaju globalni efekat na posmatrani signal. Vremenski i frekvencijski domen se u Furijeovoj analizi posmatraju kao razdvojeni prostori. Nasuprot tome, u svrhu ispitivanja lokalnih svojstava signala, zgodno je posmatrati vremensko-frekvencijsku ravan kao geometrijsku celinu, odnosno koristiti aparat vremensko-frekvencijske analize. Operatori lokalizacije predstavljaju prirodno proširenje Furijeovih množitelja u kontekstu vremensko-frekvencijske analize. U istorijskom smislu, njih je najpre uveo Felix Berezin početkom 70-tih godina prošlog veka u okviru kvantne fizike. Savremeni pristup operatorima lokalizacije, sa primenama u optici i signalnoj analizi izložen je u radu Ingrid Daubechies iz 1988. godine. Središnji deo predavanja posvećen je svojstvima operatora lokalizacije na modulacijskim prostorima, koje je definisao Hans Georg Feichtinger u svom tehničkom izeštaju iz 1983. godine. Na samom kraju, osvrnućemo se na interpretaciju operatora lokalizacije u teoriji okvira.

SEPTEMBER 2023

28/09/2023 The Project GOALS is approved for funding.

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