March 17-22, 2025. (Bielefeld university, Germany) Conference: Nonlocal Equations: Analysis and Numerics. Contributed poster: Optimal stability of complement value problems for -L\'evy operators. https://www.sfb1283.uni-bielefeld.de/2025_BI-nonlocal/.
Feburay 17-20, 2025. (Bielefeld university, Germany) Workshop: The twelfth Bielefeld-SNU Joint Workshop. Contributed poster: Optimal stability of complement value problems for -L\'evy operators. https://irtg.math.uni-bielefeld.de/workshop2025.
November 26-28, 2024. (Non)local (non)linear Workshop I in Prague. Participant. https://www.uni-bielefeld.de/fakultaeten/mathematik/ag/numerik/workshop/prague24/#top
October 18, 2024. (Max planck institute, Leipzig, Germany). Worksop: Dresden-Leipzig AG seminar day. Talk: Gradient flow solutions for porous medium equations with pressure driven by nonlocal symmetric Lévy operators. https://www.mis.mpg.de/events/event/gradient-flow-solutions-for-porous-medium-equations-with-pressure-driven-by-nonlocal-symmetric-lvy-operators
October 07-11, 2024. (Cottbus university, Germany) Conference: International Workshop on Analysis and PDEs. Talk: Gradient flow technique for porous medium equation driven by Lévy operators. https://www.b-tu.de/fg-analysis/konferenzen/analysis-and-pdes-2024
September 22-28, 2024, Jena university, Germany , Oberhof. Conference: FSDONA24 (11th International Conference on “Function Spaces, Differential Operators, and Nonlinear Analysis”), Talk: Nonlocal of Sobolev spaces and application to nonlinear Integro-Diferential Equations (IDEs). https://fsdona2024.uni-jena.de
Mai 17-21, 2024. (Cottbus university, Germany) Research invitation by Prof. Dr. Daniel Hauer. Talk: Stability of complement value problems for p-L\'evy operators. https://www.b-tu.de/fg-optimale-steuerung/lehre/sommersemester-2024/forschungsseminar-analysis-und-optimierung
April 14-19, 2024. (Goethe university, Germany) Research invitation by Prof. Dr. Tobias Weth \& Dr. Sven Jarohs . Talks : Gradient flow solutions for porous medium equations with nonlocal Lévy-type pressure and Stability of complement value problems for p-L\'evy operators. https://www.uni-frankfurt.de/152453340/Oberseminar_Funktionalanalysis_und_partielle_Differentialgleichungen
April 11, 2024. Oberseminar (TU-Dresden, Germany): Talk Gradient flow solutions for porous medium equations with nonlocal Lévy-type pressure https://tu-dresden.de/mn/math/analysis/veranstaltungen/oberseminar.
March 07-17, 2024. (Bielefeld university, Germany) Research invitation by Prof. Dr. Moritz Kassmann. Talk: Gradient flow solutions for porous medium equations with nonlocal Lévy-type pressure.
November 29 - December 01, 2023. (TU-Dresden, Germany) Workshop: International workshop "vector- and tensor-valued surface PDEs". Participant \url{https://for3013.webspace.tu-dresden.de/events/2023-11-29_international_workshop/#time-and-venue}
September 11 – 14, 2023. (Université Claude Bernard Lyon I, France) Workshop: Gradient Flows face-to-face 3. Participant \url{https://indico.math.cnrs.fr/event/9717/}.
August 20-25, 2023. (Waseda University, Tokyo, Japan) Congress: 10th International Congress on Industrial and Applied Mathematics. Talk: Gradient flow technique for symmetric nonlocal operators. \url{https://iciam2023.org/}. \url{https://iciam2023.org/registered_data?id=00897}
August 07-11, 2023. (Tohoku University, Hokkaido, Sappoaro, Nieseko, Japan) Workshop: Homogenization and/or non local operators. Invited speaker, Talk: Stability of complement value problems for -L\'evy operators. \url{https://www.kurims.kyoto-u.ac.jp/kyoten/en/workshop-2022.html}
June 19 - 23, 2023. (TU-Dresden, Germany) Workshop: Mathematical Biology: Applications and Analysis. Participant \url{https://www.markusschmidtchen.com/workshop.html#program}
May 30- June 3,2023. (TU-Dresden, Germany) Conference: 93rd GAMM Annual Meeting 2023. Participants and Organizer. \url{https://jahrestagung.gamm-ev.de/}.
March 06 –10, 2023. (Bielefeld university) Conference: Nonlocal Equations: Analysis and Numerics. Contributed Talk: Stability of complement value problems for -L\'evy operators. \url{https://www.sfb1283.uni-bielefeld.de/2023_BI-nonlocal/}.
February 21-24, 2023. (Bielefeld university) Workshop: The Tenth Bielefeld-SNU Joint Workshop. Invited Speaker. Talk: Nonlocal Sobolev spaces and application to integrodifferential equations.. \url{https://irtg.math.uni-bielefeld.de/past/events}.
February 8 -10, 2023. (Erlangen university, Germany) Research invitation by Enrique Zuazua. Talk: Energy method for nonlocal Levy operators and stability of weak solutions.\url{https://dcn.nat.fau.eu/events/energy-method-for-nonlocal-levy-operators-and-stability-of-weak-solutions/}
September 26–30, 2022. (Ulm University, On-site) Summerschool: Horizons in non-linear PDEs. Poster presentation Stability of complement value problems for -L\'evy operators. \url{https://www.uni-ulm.de/mawi/iaa/research/horizons-in-non-linear-pdes-summer-school-2022/}
September 12-16, 2022. ( Münster university, On-site) Summerschool: Analysis and Applied Mathematics. Poster presentation: Stability of complement value problems for -L\'evy operators. \url{https://www.uni-muenster.de/MathematicsMuenster/events/2022/summerschool-analysis.shtml}
May 15-21, 2022. ( University of Warsaw, Poland) Summerschool: School on nonlinear PDEs. Contributed Talk: Stability of nonlocal nonlinear Dirichlet and Neumann problems driven by integrodifferential $p$-L\'evy operators. \url{https://www.impan.pl/en/activities/banach-center/conferences/22-pdeschool}.
February 21 – 25, 2022. (Bielefeld university) Conference: Nonlocal Equations: Analysis and Numerics. Invited speaker. Talk: Nonlocal Gagliardo-Nirenberg-Sobolev type inequality. \url{https://www.sfb1283.uni-bielefeld.de/2022_BI-nonlocal/}.
January 12-14, 2022. (AIMS-Cameroon, Onsite) Conference: Maiden Edition of the Aims-Cameroon Mathematics and its Applications Meeting. Participant \url{https://aims-cameroon.org/fr/event/maiden-edition-of-the-aims-cameroon-mathematics-and-its-applications-meeting-acmam-holds-in-january-2022/}
(University of Bielefeld, Onsite) Research Invitation to Bielefeld University, LectureTopics: Analysis of differential and integro-differential equations. November 22-30, 2021 \url{https://ekvv.uni-bielefeld.de/kvv_publ/publ/vd?id=305583473&lang=en}.
(Lorentz center, Online) Conference: Nonlocality in Analysis, Numerics and Applications. October 27 - 29, 2021. Participant. \url{https://www.lorentzcenter.nl/nonlocality-in-analysis-numerics-and-applications.html}
(Ilsenburg; Harz mountains). Retreat: IRTG 2235 retreat. In person October 24 - 27, 2021, \url{https://irtg.math.uni-bielefeld.de/past/events#retreat_2021}.
(Freiburg university, Online) Conference: 9th GAMM-Seminar on Analysis of Partial Differential Equations. October 6-8, 2021. \url{https://aam.uni-freiburg.de/workshops/pdes2021/index.html}.
(Bielefeld University) Research Invitation to Bielefeld University. August 27-September 05, 2021. Talk: . Talk: Nonlocal Gagliardo-Nirenberg-Sobolev type inequality.
(TU-Dresdren, Onsite) Retreat: SNOW: Scientific Computing and Numerics Organized (Winter) Seminar. September 19-24, 2021, Location: Börgerende-Rethwisch (Germany). \url{https://for3013.webspace.tu-dresden.de/events/snow_seminar/}.
March 22-26, 2021. (Wroclaw-Dresden, Online) Workshop: Nonlocal Operators and Markov Processes II, Participant. \url{http://prac.im.pwr.wroc.pl/~bogdan/nomp-II.html}.
February 22-26, 2021. (Münster, Germany, Online) Winterschool: Analysis and Applied Mathematics. Participant \url{https://www.uni-muenster.de/MathematicsMuenster/events/2021/winterschool-analysis.shtml}.
February 15-19, 2021. (ITCS, Tata Institute of fundamental Research, Online) Worksop: Multi-scale Analysis: Thematic lectures and meeting. Participant \url{https://www.icts.res.in/discussion-meeting/MATHLEC2021}.
Novemver 23-25, 2020. (WIAS Berlin, Online) Workshop: MA4M: Mathematical Analysis for Mechanics. Participant. \url{https://mathplus.de/topic-development-lab/tes-winter-2020-21/ma4m/}
October 26-30, 2020. (Wroclaw-Dresden, Online) Workshop: Nonlocal Operators and Markov Processes I. Paticipant. \url{http://prac.im.pwr.wroc.pl/~bogdan/nomp.html}
September 30 to October 2, 2020. (IST Austria, Klosterneuburg, Online) Workshop: 8th GAMM Activity Group "Analysis of partial differential equations". Participant. \url{https://www.uni-regensburg.de/mathematics/partial-differential-equations/events/index.html
February, 15- 19 2021. (ITCS, Tata Institute of fundamental Research, Online) Multi-scale analysis: thematic lectures and meeting. Participant \url{https://www.icts.res.in/discussion-meeting/MATHLEC2021}
February 22-26, 2021. (Münster, Germany,Winterschool) on Analysis and Applied Mathematics Participant. \url{https://www.uni-muenster.de/MathematicsMuenster/events/2021/winterschool-analysis.shtml}.
March 22-26, 2021. (Wroclaw-Dresden, Online) Workshop on Nonlocal Operators and Markov Processes II, Paticipant. \url{http://prac.im.pwr.wroc.pl/~bogdan/nomp-II.html}
August 27-September 05 2021. Reseaerch Invitation to Bielefeld University.
September 19-24, 2021. (TU-Dresdren Onsite) SNOW:Scientific Numerics Organized Winter. Location: Börgerende-Rethwisch (Germany). \url{https://for3013.webspace.tu-dresden.de/events/snow_seminar/}
October 6-8, 2021. (Freiburg university, Online) 9th GAMM-Seminar on Analysis of Partial Differential Equations. url{https://aam.uni-freiburg.de/workshops/pdes2021/index.html}
October 24 - 27, 2021. (IRTG 2235 retreat)in Ilsenburg (Harz mountains). \url{https://irtg.math.uni-bielefeld.de/past/events#retreat_2021}
October 27-29 , 2021. (Lonretz center, Online) Conference: Nonlocality in Analysis, Numerics and Applications. Participant \url{https://www.lorentzcenter.nl/nonlocality-in-analysis-numerics-and-applications.html}.
November 22-30, 2021. (Lecture at University of Bielefeld Onsite) Topics Lecture: Analysis of differential and integro-differential equations. \url{https://ekvv.uni-bielefeld.de/kvv_publ/publ/vd?id=305583473&lang=en}
August 19-23, 2019. Bielefeld University, IRTG summer school on probability theory and stochastic dynamics \url{https://irtg.math.uni-bielefeld.de/summerschool2019}
June 10-16, 2019. Wuppertal University, Final workshop: 22nd Internet seminar Ergodic Theorems. Talk: Mixing Dynamical System and their Probabilistic interpretation. https://ergodic.mathematik.uni-leipzig.de
May, 20-24 , 2019. Bedlewo (Poland), Conference: Analysis and Probability 2019. Poster: Mosco convergence of Nonlocal to local quadratics forms. \url{https://www.impan.pl/en/activities/banach-center/conferences/19-probability}
March 25-29 , 2019. Bielefeld University, Conference: Analysis of nonlocal and nonsmooth models. Poster: Mosco convergence of Nonlocal to local quadratics forms. \url{https://www.sfb1283.uni-bielefeld.de/2019_NNSSA/}
February 26- March 01, 2019, Bielefeld, Workshop: Seventh Bielefeld-SNU Joint Workshop in Mathematics. Talk: Mosco convergence of Nonlocal to local quadratics forms. \url{https://irtg.math.uni-bielefeld.de/workshop2019}
February, 18-22, 2019. Mbour (Aims-Senegal), Spring School: Spring School on Local and Nonlocal Elliptic and geometry problems. \url{https://aims-senegal.org/event/spring-school-on-local-nonlocal-elliptic-geometric-problems-aims-senegal-mbour-february-18-22-2019/}
February 11-13, 2019. Noderney, Workshop: Second IRTG (International Research Training Group) 2235 retreat. \url{https://irtg.math.uni-bielefeld.de/past/events}
November 07-08 , 2018. Paderborn University, Winter school: Westphalian Stochastic Day (Westfälischer Stochastiktag). \url{https://math.uni-paderborn.de/ag/arbeitsgruppe-wahrscheinlichkeitstheorie/forschung/konferenzen/westfaelischer-stochastiktag}
November 07-08 , 2018. Paderborn University, Winter school: Westphalian Stochastic Day (Westfälischer Stochastiktag). \href{https://math.uni-paderborn.de/ag/arbeitsgruppe-wahrscheinlichkeitstheorie/forschung/konferenzen}{https://math.uni-paderborn.de/ag/arbeitsgruppe}
September 10-14, 2018. (Max Planck institute, Leipzig), Conference: Inverse and Spectral Problems for (Non)-Local Operators. \url{https://www.mis.mpg.de/calendar/conferences/2018/operators2018.html}
September 03 -07, 2018. Bielefeld University, Conference: 9th International Conference on Stochastic Analysis and its Applications. \url{https://www.math.uni-bielefeld.de/icsaa/#home}
March 22-29, 2017. UAM University of Madrid (Spain), Spring School: Minischool on Recent Trends in PDEs. \url{https://verso.mat.uam.es/~difusion.nolineal/2017minischool/}
March 15-17, 2018. SNU Seoul National University (South Korea), Workshop: Sixth Bielefeld-SNU Joint Workshop. \url{http://irtg.math.snu.ac.kr/IRTG_Workshop2018}
February, 22-25, 2017. Bielefeld University, Workshop: Fifth Bielefeld-SNU Joint Workshop. \url{https://irtg.math.uni-bielefeld.de/workshop2017}
February 16-20, 2017. Paderborn University, Workshop: First IRTG (International Research Training Group) 2235 retreat. \url{https://irtg.math.uni-bielefeld.de/past/events}
October 10-14, 2016. Bielefeld University, Conference: Stochastic Partial Differential Equations and Related Fields. \url{https://sfb701.math.uni-bielefeld.de//2016_SPDERF/}
July 10-16, 2016. (AIMS-Cameroon, Limbe), Workshop: Atelier Analyse Classique et Applications III. \url{https://lac2016workshop.sciencesconf.org/resource/listeparticipants.html}
October 06-11, 2014. Yaounde I (Cameroon), Conference: 20th edition GIRAGA (Inter-African Research Group In Analysis Geometry And Applications).