Name: STAMATE (LUPASCU), Oana-Valeria

ORCID iD: 0009-0003-1787-5129

Date of birth: 14th December 1986

Marital status:  Married, 1 daughter (2021)

Nationality:  Romanian

Education:

• Habilitation in Mathematics (2020):  Stochastic numerical approach for branching-fragmentation processes, Gheorghe Mihoc-Caius Iacob Institute of Mathematical Statistics and Applied Mathematics of the Romanian Academy

  • PhD in Mathematics (2010-2013):  Probabilistic and deterministic models for fracture type phenomena, in the frame of a cotutelle agreement between Paris 13 University, France, and Simion Stoilow Institute of Mathematics of the Romanian Academy (IMAR) in Bucharest, Romania; under the joint supervision of

    • Prof. Dr. Ioan R. Ionescu (University Paris 13) and Prof. Dr. Lucian Beznea (Simion Stoilow Institute of Mathematics of the Romanian Academy).

  • Master in Mathematics at Scoala Normala Superioara Bucuresti, (2009-2011).

  • Master in Applied Mathematics at the Faculty of Mathematics and Informatics, University of Pitesti, Romania, (2008-2010).

  • BS in Mathematics at University of Pitesti, Romania, (2005-2008).

Awards:

• Prize of  The Romanian Society of the Applied  Mathematical and Industry (ROMAI)  "Adelina Georgescu", September 2024

• Prize of  The Romanian Mathematical Society, offered to a young Romanian mathematician, June 2019.

•  Prize of The Romanian Society of Probability and Statistics, offered to a young Romanian mathematician, May  2019.

•  Dimitrie Pompeiu prize of the Romanian Academy, December 2017.

Research grants:

• • Director of the Research Team project  Stochastics models for nonlinear PDEs, funded by he Romanian Ministry of Education and Research, 2025-2027, host institution : ISMMA.

  • Director of the Postdoctroral project Random time modifications of stochastic processes with numerical aspects for non-linear equations, funded by the Romanian Ministry of Education and Research, 2018-2020, host institution : ISMMA.

Current PhD supervision : Adrian - Constantin CULICA, PhD student since 2026, October.

 Publications: 

•  L. Beznea,  O. Lupaşcu-Stamate, A. Teodor,  Nonlinear Dirichlet problem of non-local branching processes, Journal of Mathematical Analysis and Applications,  547  (2025) 29281

• M. Deaconu, O. Lupascu-Stamate, Asymptotic behavior of a one-dimensional avalanche model through a particular stochastic process, acceptat pentru publicare in REVUE ROUMAINE DE MATHÉMATIQUES PURES ET APPLIQUÉES , 2025.

•  O. Lupascu-Stamate, V. Stanciulescu, Numerical solution to the Neumann problem in a Lipschitz domain, based on random walks,   accepted for publication in  Proceedings of the Romanian Academy, Series A: Mathematics, Physics, Technical Sciences, Information Science, (2024)  https://drive.google.com/file/d/12oWIyicHtpUHNFOX_kcuVu4EgjF6aG0B/view?usp=share_link

•  L. Beznea, I.R. Ionescu, O. Lupaşcu-Stamate, Random multiple-fragmentation and flow of particles on a surface, Journal of Evolution Equations 21(4):1-25 (2021)  DOI:10.1007/s00028-021-00732-z

• L. Beznea, M. Deaconu, O. Lupaşcu-Stamate,  Scaling property for fragmentation processes related to  avalanches. In:  Applications of Mathematics and Informatics in Natural Sciences and Engineering, Springer Proceedings in Mathematics & Statistics 334 (2020), https://doi.org/10.1007/978-3-030-56356-1_3

• L. Beznea,  A-M. Boeangiu, O. Lupaşcu-Stamate,  h-transform of Doob and nonlocal branching processes, Anal. Math. Phys. 10 (2020), no 4, 47. 

• L. Beznea, O. Lupaşcu-Stamate, C. Vrabie, Stochastic solutions to evolution equations of non-local branching processes, Nonlinear Analysis 200 (2020), 112021, 18 pp.

• I. R. Ionescu, O. Lupaşcu-Stamate, Boundary variation method for the generalized Cheeger problem, Applied Numerical Mathematics 140 (2019) 199-214. 

• O. Lupaşcu-Stamate, C.-A Tudor, Rosenblatt Laplace motion, Mediterr. J. Math., (2019), https://doi.org/10.1007/s00009-018-1290-x

• L. Beznea, M. Deaconu, and O. Lupaşcu-Stamate, Numerical approach for stochastic differential equations of fragmentation; application to avalanches, Mathematics and Computers in Simulation,  160 (2019) 111-125. https://doi.org/10.1016/j.matcom.2018.12.004

• O. Lupaşcu, V. Stanciulescu, Numerical solution for the non-linear Dirichlet problem of a branching process, Complex Analysis and Op. Th. , 8 (2017), 1895-1904.

• L. Beznea, M. Deaconu, and O. Lupaşcu, Stochastic equation of fragmentation and branching processes related to avalanches, Journal of Statistical Physics, 162 (2016), 824–841.

•  L. Beznea and O.Lupaşcu, Measure-valued discrete branching Markov processes, Trans. Amer. Math. Soc., 368 (2016), no. 7, 5153-5176.

• I. R. Ionescu and O. Lupaşcu, Modeling shallow avalanche onset over complex basal topography, Advances in Computational Math., 42 (2016), 5-26.

• I. R. Ionescu and O. Lupaşcu, Onset of a dense avalanche on a plane slope, Proc. Romanian Academy, 16 (2015), 405-412.

•  L. Beznea, M. Deaconu, and O. Lupaşcu, Branching processes for the fragmentation equation, Stochastic Processes and their Applications, 125 (2015), 1861-1885.

• O. Lupaşcu, Subordination in the sense of Bochner of L^p-semigroups and associated Markov processes, Acta Mathematica Sinica, English Series, 30 (2014), 187-196.

•  L. Beznea, O. Lupaşcu, and A.-G. Oprina, A unifying construction for measure-valued continuous and discrete branching processes. In:  Complex Analysis and Potential Theory, CRM Proceedings and Lecture Notes, vol.  55, Amer. Math. Soc., Providence, RI, 2012, pp. 47-59. 

Preprints

•  O. Lupascu-Stamate, V. Staniculescu, Numerical methods for linear parabolic  SPDEs   with boundary conditions by probabilistic approaches, preprint 2026.

• Lucian Beznea,O. Lupascu-Stamate, R. Stoica, Levy driven branching Cox processes, preprint 2026.

• O. Lupascu-Stamate, V. Stanciulescu, Numerical solution to the Neumann problem in a Lipschitz domain, based on random walks,   accepted for publication in  Proceedings of the Romanian Academy, Series A: Mathematics, Physics, Technical Sciences, Information Science, 2024  https://drive.google.com/file/d/12oWIyicHtpUHNFOX_kcuVu4EgjF6aG0B/view?usp=share_link

    and https://arxiv.org/submit/5640218/view

• L. Beznea, I. Cimpean, O. Lupascu-Stamate, I. Popescu, A. Zarnescu, From Monte Carlo to neural networks approximations of boundary value problems, preprint 2023,  in revision,  (https://arxiv.org/abs/2209.01432).

• D. Coculescu, O. Lupascu-Stamate, On the fragility of mutual insurance arrangements, submitted, preprint 2021 (https://papers.ssrn.com/sol3/papers.cfm?abstract_id=1189182).

Fellowships:

• • Research fellowship of the French Institute in Bucharest: 1 month, (November-December 2023).

  • Postdoctoral fellowship of the French Institute in Bucharest: 2 months, (October-November 2016).

  • Postdoctoral fellowship of the Research Institute of the University of Bucharest (ICUB), Romania: 9 months, (April-December 2015).

  • Joint research project with Prof. Dr. Ioan R. Ionescu (Univ. Paris-Nord), entitled Modeling of snow avalanches and stochastic aspects, funded by the Laboratoire Europeean Associe CNRS Franco-Roumain, May-November 2015. 

  • Postdoctoral fellowship at INRIA Tosca team, Nancy: 16 mois (December 2014 - March 2015).

  • PhD fellowship of the Cultural Service of the French Embassy in Bucharest: support for 12 months, during two academic years (2011-2013).

• PhD fellowship in a POSDRU project, co-founded by EU and the Romanian Government, 2011-2013.

  • BITDEFENDER Junior Research fellowship at IMAR: 6 months in 2010.

Teaching activities:

• • Lectures on Stochastic Differential Equations (master M2), University of Bucharest,  2019-2020.

• Lectures in Méthodes stochastiques et numériques pour des processus de fragmentation et coagulation I, (10 hours) at the Regional Romanian-French Summer School in Applied Mathematics, Sinaia, July 2019.

• Seminars on Brownian motion and Levy processes (master M1), University of Bucharest, 2017-2018.

• Seminars on Real analysis (license L1), University of Lorraine, Nancy, France, 2014.

• Seminars on Probability (license L1), University of Lorraine, Nancy, France, 2014.

• Seminars on Rigid solid mechanics (license L2), University Paris 13, France, 2013.

• Seminars on Linear algebra and geometry (license L1), real analysis (license L1), probability and statistics (license L2), POLITEHNICA University Bucharest, 2010-2012.

Participation in Research grants:

• • Member of the research team of the project Stochastic analysis  methods for the evolution equations of non-local branching and fragmentation processes, funded by he Romanian Ministry of Education and Research, 2022-2024.

  • Member of the research team of the project Stochastic analysis and nonlinear equations for fragmentation processes, funded by he Romanian Ministry of Education and Research, 2017-2019.

  • Member of the research team of the national research project entitled Dense avalanches: from experiment to  software, funded by the Romanian Ministry of Education and Research, 2017-2018.

• Member of the research team of the national research project entitled Analysis of Schroedinger equations, funded by the Romanian Ministry of Education and Research, 2015-2017.

• Member of the research team of the national research project entitled Mathematical Modeling of Ductile Rupture, funded by the Romanian Ministry of Education and Research, 2011-2016.

Research collaborations:

• • BCAM, Spain, collaboration with Arghir Zarnescu, 2018.

  • University of Zurich, Switzerland, collaboration with Delia Coculescu, 2017-2022.

  • University Paris 1, France,  collaboration with Ciprian A. Tudor, 2016, 2019.

• Institut Elie Cartan de Lorraine, France, collaboration with Madalina Deaconu, 2012, 2016-2022.

• University Paris 13, France,  collaboration with Ioan R. Ionescu, 2014 - 2023.

  • Scientific visit at Technical University of Dresden, Germany, invited Rene Schilling, June 2012 (one week).

Other conferences, workshops, and summer schools attended:

• Summer School on Levy Processes, Lille, France, July 2016.

  • Regional Romanian-French Summer School in Applied Mathematics, Sinaia, July 2015.

• Brussels Summer School of Mathematics, Brussels, August  2013.

  • The first NIMS Probability Summer School, Daejeon, Coree du Sud, August  2011.

• Partial Differential Equation, Summer School from Cortona, Italy, August 2010.

• Evolution equation and numerical analysis, SIMUMAT Summer School from Castro Urdiales, Cantabria, Espagne, July 2009.

PC Skilles:

• • Math software: Matlab, FreeFem++, LaTeX.

Foreign Languages:

• • Romanian (native), English, French.