CIOTIR Ioana

02 32 95 66 12 - HDR

  • Thèmes de recherche: Homogénéisation stochastique, EDP stochastiques, contrôle optimal, équations dirigées par le mouvement Brownien fractionnaire, représentation probabiliste, comportement en temps long pour des processus stochastiques renforcés.
  • Projets : membre des projets Scale Op (2024-2028, Idemo, BPI France, avec Siemens Gamesa Renewable Energy), DEFHY3GEO (2022-2025),  M2Num (Région Normandie et Europe, 2015-2019), M2SiNum (Région Normandie et Europe, 2018-2021), et ANR Project QUantum Turbulence Exploration by High-Performance Computing (ANR-18-CE46-0013).
  • Activités Administratives :
    Référente Développement Durable du LMI et du Département GM depuis Mai 2020.
  • Collaborations: Siemens-Gamesa, ADWEN (N. Warncke), ENSTA Paris, Iasi (Roumanie), Neuchatel (Suisse), TU Berlin (Allemagne) et Japon. Invitée en Chine (Université Shandong à Weihai) 1 mois en 2024 (D. Goréac).
  • Encadrement doctoral : Carl-Erik Gauthier (avec M. Benaïm, Neuchatel, Suisse), thèse soutenue en 2015, R. Fayad (avec N. Forcadel) thèse soutenue le 12 janvier 2021, et P. Visconti (avec H. Zidani et N. Forcadel, à partir de sep. 2021).
  • Enseignement: Génie Mathématique : Probabilités (GM3), Calcul stochastique pour la Finance  (GM5), Mathématiques au département Energie-Propulsion et TD de probabilités en STPI.
  • Thèse: Doctorat de Mathématique, Iasi (Roumanie) sous la direction de Viorel Barbu.

 

Page web personnelle

Publications

 En cours (2024)

  • Ciotir I., Zidani H., Forcadel N., Optimality conditions for stochastic porous media equation.
  • Ciotir I., Goreac D., Hilhorst D., Kettaneh P., A regional segregation problem as the vanishing latent heat of a sequence of stochastic Stefan-like problem.

Publications dans des journaux avec comité de lecture

  • Ciotir, I., Fukuizumi, R., Goreac, D., (2024) The stochastic fast logarithmic equation in Rd with multiplicative Stratonovich noise, Journal of Mathematical Analysis and Applications, 2025, 542(1), 2024.
  • Ciotir, I., Goreac, D., Tölle, J.M., (2024) Improved regularity for the stochastic fast diffusion equation,  Electronic Communications in Probability (29), 5, 2024.
  • Ciotir I., Goreac D., Munteanu I., (2023) State-constrained porous media control systems with application to stabilization, Journal of Evolution Equations, Springer, 23(2) : 25, 2023.
  • Ciotir I., Goreac D., Munteanu I., (2023) Asymptotic issue for porous media systems with linear multiplicative gradient-type noise via state constrained arguments, Asian Journal of Control 25(4), pp. 2604-2616, 2023.
  • Ciotir I., Fayad R., (2022) Nonlinear Fokker-Planck equation with reflecting boundary conditions,
    Journal of Differential Equations, 321, 296–317 ]
  • Barbu, V., Ciotir, I., Danaila, I., (2021) Existence and uniqueness of solution to the two-phase Stefan problem with convection,
    Applied Mathematics and Optimization, 84(2), DOI: 10.1007/s00245-021-09764-w
  • Ciotir, I., Forcadel, N., Salazar, W., (2021) Homogenization of a stochastic viscous Burgers' type equation,
    Evolution Equations and Control Theory, 10(2): 353-364.
  • Tonnoir, A., Ciotir, I., Scutariu, A.-L., Dospinescu, O., (2021) A Model for the Optimal Investment Strategy in the Context of Pandemic Regional Lockdown,
    MDPI, Mathematics 2021, 9, 1058.
  • Ciotir, I., Fayad, R., Forcadel, N., Tonnoir, A., (2021) A non-local macroscopic model for traffic flow,
    ESAIM: M2AN, Volume 55, Number 2, March-April 2021, pp. 689-711.
  • Ciotir, I., (2020) Stochastic porous media equations with divergence Itô noise,
    Evolution Equations & Control Theory (EECT), 9(2): 375-398.
  • Warncke, N., Ciotir, I., Tonnoir, A., Gout, C. and Lambert, Z., (2019) Analytical approach to Galerkin BEMs on polyhedral surfaces,
    SMAI J. of Computational Mathematics, Volume S5, p. 27-46.
  • Ciotir, I., (2017) Stochastic super fast diffusion equations with multiplicative noise,
    Journal of Mathematical Analysis and Applications, 452 (1), p. 595-610
  • Ciotir, I., Tölle, J.M., (2016) Nonlinear stochastic partial differential equations with singular diffusivity and gradient Stratonovich noise, Journal of Functional Analysis 271, 1764-179.
  • Ciotir, I.,(2015) Existence for the Neumann stochastic semilinear equations via an optimal control approach,
    Journal of Optimization Theory and Applications: Volume 167, Issue 3, page 1095-1111.
  • Benaïm, M., Ciotir, I., Gauthier, C.-E., (2015) Self-repelling diffusions via an infinite dimensional approach
    Stoch. Partial Differ. Equ. Anal. Comput. 3, no. 4, 506-530.
  • Ciotir, I., Russo, F., (2014) Probabilistic representation for solutions of a porous media type equation with Neumann boundary condition : the case of the half-line,
    Differential and Integral Equations, Volume 27, Numbers 1-2, 181-200.
  • Ciotir, I., Tölle, J.M., (2012) Convergence of invariant measures for singular stochastic diffusion equations,
    Stochastic Processes and their Applications, Volume 122, Issue 4, p. 1998–2017.
  • Ciotir, I., (2011) Convergence of the solutions for the stochastic porous media equations and homogenization,
    Journal of Evolution Equations, Springer, ISSN 1424-3199, Volume 11, Issue 2, p. 339-370.
  • Ciotir, I., (2011) A Trotter-type theorem for nonlinear stochastic equations in variational formulation and homogenization,
    Differential and Integral Equations, Khayyam Publishing Company, ISSN 0893 - 4983, Volume 24, Issue 3-4, p. 371-388.
  • Ciotir, I., (2010) Existence and uniqueness of solution for stochastic porous media equations of saturated fows,
    Applied Mathematics and Optimization, Springer New York, ISSN 0095-4616, Volume 61, Issue 1, p. 129-143.
  • Ciotir, I., Rascanu, A., (2009) Viability for stochastic differential equations driven by fractional Brownian motion,
    Journal of Differential Equations, Elsevier, ISSN 0022-0396, Volume 247, Issue 5, p.1505-1528.
  • Ciotir, I., (2009) A Trotter type result for the stochastic porous media equations,
    Nonlinear Analysis : Theory, Methods & Applications, Elsevier, ISSN 0362-546X, Volume 71, Issue 11, p. 5606-5615.
  • Ciotir, I., (2009) Tangent sets in the viability of differential equation driven by Young integral,
    The Annals of University "Al.I. Cuza" Iasi, ISSN 1221-8421, Tom LV, s.l., f.2, p.403-418.
  • Agrigoroaiei, O., Ciotir, I., (2006) An inverse problem in optical tomography,
    Memoriile Sectiilor Stiintifice (Memoirs of Scientifc Sections), Publishing House of the Romanian Academy, ISSN 1224-1407, Seria IV, Tom XXIX, p. 75-83.

 

Actes de conference

  • R.Antoine, I. Ciotir, S. Costa, Y. Fargier, C. Fauchard, C. Gout, C. Le Guyader, O. Maquaire, S. Taoum, A. Tonnoir,, (2020) Coastline Erosion Study via UAV Drone Remote Sensing Using Python Modelling Electrical Resistivity Imaging (PyMERI),
    IGARSS 2020-2020 IEEE International Geoscience and Remote Sensing Sympo- sium
  • Ciotir, I., (2014) Existence for the Neumann stochastic semilinear equations via an optimal control approach,
    21st International Symposium on Mathematical Theory of Networks and Systems

 

Publications en Economie

  • Ciotir, I., Scutariu, A., (2011) A comparative analysis of the Romanian development regions, in terms of economic and tourism indicators,
    The Annals of the "Stefan cel Mare" University of Suceava, volume 11, no. 1.
  • Ciotir, I., Scutariu, A.,, (2009) A statistical analysis of the north-east region of Romania compared to the others in terms of tourist activity,
    The Annals of the "Stefan cel Mare" University of Suceava, volume 9, no. 2 (10).

Communications

  • 2014, Juillet, Invitée à International Symposium on Mathematical Theory of Networks and Systems, Groningen, Pays-Bas.
  •  2012, Avril, "Convergence of solutions and invariant measures for stochastic differential equations with singular diusivity", Conference on Probability and Related Aspects, AlbaIulia, Roumanie.
  •  2012, Février, "Convergence of invariant measures for singular stochastic diffusion equations" Workshop Recent Developments in Stochastic Analysis, Lausanne EPFL, Suisse.
  •  2011, Septembre, "Convergence of solutions for stochastic differential equations in Hilbert spaces and applications", Conference on Applied and Industrial Mathematics, Iasi, Roumanie.
  •  2011, Juillet, "Existence and uniqueness of solution for the stochastic nonlinear diusion equation of plasma", Workshop Stochastic and Real World Models, Bielefeld, Allemagne.
  •  2010, Août, "Convergence of the invariant measures for stochastic partial differential equation", Colloque franco-roumain en mathématiques appliquées, Poitiers, France.
  •  2010, Janvier, "A Trotter type theorem for nonlinear stochastic equations in variational formulation and homogenization", Joint Meeting on Stochastic Analysis, SPDEs, Particle Systems, Optimal Transport, Levico Terme, Italie.
  •  2010, Janvier, "A Trotter theorem for stochastic porous media equations and homogenization", SPDW01 Stochastic Partial Dierential Equations, Cambridge, Angleterre.
  •  2009, Mai, "Convergence of the solution for stochastic porous media equations and homogenization", Workshop Stochastic and Real World Models, Bielefeld, Allemagne.
  •  2009, Mai, "A Trotter-type result for stochastic porous media equations", Workshop Mathematical approaches in optimization, modellisation and control, Iasi et Paris Dauphine, France.
  •  2008, Septembre, "Stochastic viability", Workshop Stochastic Partial Dierential Equations, Iasi, Roumanie.

Co-organisation de manifestations:

  • Co-organisation des Rencontres Mathématiques de Rouen 2018, avec  Martin HAIRER, médaille Fields 2014 (Solution Theory for Quasilinear Singular Stochastic PDEs), juin 2018,  https://rmr2018.sciencesconf.org/