« ȘCOALA DOCTORALĂ DE MATEMATICĂ ȘI INFORMATICĂ »

Activitate internațională cu implicarea Școlii Doctorale – Domeniul Matematică – 2021-2025

Doctoranzi în cotutelă

  • Acord de cotutelă cu College of Science, National Taiwan Normal University, Taipei, Taiwan, semnat de UBB in decembrie 2025, pentru domenii de doctorat din zona de științe, inclusiv Matematica si Informatica, facilitat de Adrian Petrușel.
  • Brigitte Breckner, acord de cotutela UBB – Universitatea Tehnică din Dresda pentru drd. Dan-Andrei Mircea (îndrumător de la Universitatea Tehnică din Dresda: prof. dr. Ralph Chill). Acordul demarat în 2025 este în curs de finalizare.

Membri internaționali în comisii de îndrumare sau publice

Participări in comisii doctorale publice în afara țării

  • Mirela Kohr, Membru (examinator) în comisia de evaluare a tezei de doctorat: H. Mohsen, Uniform estimates for sign-changing transmission problems: Links with boundary triples and uncertainty quantification, PhD advisers Prof. Victor Nistor and Prof. Simon Labrunie, Institut Élie-Cartan de Lorraine, University Lorraine, France, 2 December, 2022
  • Adrian Petrusel, Membru in comisia de evaluare a tezei de doctorat Ph.D. Student: Rashmi Malik, Title: Fixed Point Theorems for Nonexpansive Mappings and Asymptotically Nonexpansive Type Mappings; A thesis for the award of the degree of DOCTOR OF PHILOSOPHY, DEPARTMENT OF MATHEMATICS AND STATISTICS, INDIAN INSTITUTE OF TECHNOLOGY TIRUPATI, INDIA, April 2024
  • Adrian Petrusel, Membru in comisia de evaluare a tezei de doctorat Ph.D. Student: M. Prabavathy, Title: A study on fixed point and best proximity point results in various types of metric spaces, A thesis submitted  for the award of the Degree of DOCTOR OF PHILOSOPHY IN MATHEMATICS, UNIVERSITY OF MADRAS, INDIA, December 2023
  • Adrian Petrusel, Membru in comisia de evaluare a tezei de doctorat Ph.D. Student: M. Madhuri, Title: A study of fixed points, common fixed points for different contraction mappings in generalized metric spaces and related applications, A thesis submitted for the award of the degree of DOCTOR OF PHILOSOPHY IN MATHEMATICS, DEPARTMENT OF MATHEMATICS, GITAM SCHOOL OF SCIENCE, GITAM (DEEMED TO BE UNIVERSITY), VISAKHAPATANAM, INDIA, March 2025
  • Adrian Petrusel, Membru in comisia de evaluare a tezei de doctorat Ph.D. Student: Muhammad Waseem Asghar, Title: Convergence Analysis of Approximation Methods for the Solution of Nonlinear Operator Equations,A thesis submitted for the award of the degree of DOCTOR OF PHILOSOPHY IN MATHEMATICS, DEPARTMENT OF MATHEMATICS, GC UNIVERSITY LAHORE, PAKISTAN, October 2023
  • Adrian Petrusel, Membru in comisia de evaluare a tezei de doctorat Ph.D. Student: Parveen Kumar, Title: Study on Controllability of Functional Differential Systems, A thesis submitted for the award of the degree of DOCTOR OF PHILOSOPHY IN MATHEMATICS, DEPARTMENT OF MATHEMATICS & SCIENTIFIC COMPUTING, NATIONAL INSTITUTE OF TECHNOLOGY HAMIRPUR, INDIA, July 2024.
  • Teodor Groșan, evaluator extern (Foreign Examiner for the evaluation of the PhD Thesis), 2022: Naeem Ullah, Flows of Nanofluids inside Cavities: Finite Element Method, (supervisor: Professor Sohail Nadeem), Quaid-i-Azam University, Islamabad, Pakistan.
  • Teodor Groșan, evaluator extern (Foreign Examiner for the evaluation of the PhD Thesis), 2023: Salman Akhtar, Mathematical Computations for Peristaltic flow in a duct, (supervisor: Professor Sohail Nadeem), Quaid-i-Azam University, Islamabad, Pakistan.
  • Teodor Groșan, evaluator extern (Foreign Examiner for the evaluation of the PhD Thesis), 2024: Mahesh T, Thin film flow of generalized second-grade fluids (supervisor: Dr. Satyananda Panda), Department of Mathematics, National Institute of Technology, Calicut, Kerala, India.
  • Teodor Groșan, evaluator extern (Foreign Examiner for the evaluation of the PhD Thesis), 2024: Bushra Ishtiaq, Numerical and Analytical Solutions of non-Newtonian Fluid Models Having Physical Boundary Conditions (supervisor: Professor Sohail Nadeem), Quaid-i-Azam University, Islamabad, Pakistan.
  • Sanda Micula, referent in comisie de doctorat, la Indian Institute of Technology Kanpur, India, doctorand Rakesh Kumar (iunie 2025);
  • Ciprian Modoi, membru in comisa de susținere a tezei Structural and categorical description of classes of abelian groups, sustinuta in 2021 de Josef Dvorak la Universitatea Karlova din Praga, Cehia; https://dspace.cuni.cz/handle/20.500.11956/173907

Proiecte de cercetare cu parteneri internaționali sau proiecte de cercetare externe

Mobilități Erasmus incoming

Mobilități Erasmus outgoing

  • Brigitte Breckner, September 17-21, 2024, Erasmus teaching mobility,Technical University Dresden, Germany.
  • Brigitte Breckner, June 1-10, 2025,  Erasmus teaching mobility,Technical University Dresden, Germany.
  • Ciprian Modoi, mobilitate Erasmus+ la Universitatea din Santiago de Compostela, in 2025. A ținut un curs pentru studenții la master si la doctorat  intitulat Advanced Course in Homological Algebra.

Mobilități de cercetare outgoing

  • Mirela Kohr, Annual research visits (visiting professor) to the University of Toronto, Department of Mathematics, supported by the research grant: Natural Sciences and Engineering Research Council of Canada grant A9221, Director Professor Ian Graham, 1999-2008; 2009-2019 (partial support).
  • Mirela Kohr, Visiting Researcher within the grant EP/M013545/1 (2015-2018): Mathematical Analysis of BoundaryDomain Integral Equations for Nonlinear PDEs, EPSRC grant, UK. Director Professor Sergey E. Mikhailov, Brunel University London (UK).
  • Brigitte Breckner, September 22-24, 2024, research internship, Technical University Dresden, Germany.
  • Brigitte Breckner, June 10-14, 2025, academic visit, Technical University Clausthal, Germany.

Mobilități internaționale ale doctoranzilor

  • Andrei Florin Alisoru a efectuat mobilitati Erasums la universitati din Germania si Italia. Si-a sustinut teza de doctorat in septembrie 2024.
  • Drd. Paul-Ioan Marin:  colaborare cu prof. Erika Hausenblas de la Montanuniversität Leoben, Austria (Lehrstuhl für Angewandte Mathematik), 21-28.06.2025
  • Drd. Paul-Ioan Marin: participare la Workshop „Numerical modelling of nonlinear stochastic systems”, ICMS, Bayes Centre, Edinburgh (UK), 7-11.04.2025
  • Rafiliu Cristian, Mobilitate internationala, 12/05/2024-18/05/2024, Purity, Approximation Theory and Spectra, Cetraro, Italy
  • Rafiliu Cristian, Mobilitate internationala, 12/08/2024-17/08/2024, Masterclass on Derived Category Methods in Ring Theory, Aarhus, Denmark
  • Rafiliu Cristian, Mobilitate internationala, 22/09/2024-28/09/2024, Triangulated categories in algebra and geometry – with talk: Comparing Add(M) and Prod(M) in compactly generated triangulated categories, Prague, Czech Republic
  • Rafiliu Cristian, Mobilitate internationala, 23/02/2025-01/03/2025, Large Modules and Endofiniteness, Winter school, Stuttgart, Germany
  • Rafiliu Cristian, Mobilitate internationala, 22/06/2025-27/06/2025, Derived Representation theory and Triangulated Categories, Thessaloniki, Greece
  • Rafiliu Cristian, Mobilitate internationala, 09/11/2025-15/11/2025, Interactions between homotopy theory and representation theory – Copenhagen, Denmark
  • Dan-Andrei Mircea a efectuat in perioada 12.10.-8.11.2025 un stagiu de cercetare la Universitatea Tehnica din Dresda, Germania

Articole în colaborare cu coautori externi

  • M. Kohr, S.E. Mikhailov, V. Nistor, W.L. Wendland, Stationary Stokes and Navier-Stokes Equations with Variable Coefficients – Integral operators and Variational approaches – Springer, Lecture Notes in Mathematics, 2026, XX, 765 pp. ISBN 978-3-031-98603-1. Due: April 2026.
  • H. Hamada, G. Kohr, M. Kohr, Subordination chains and solutions to the Loewner PDE in infinite dimensions, Journal of Geometric Analysis, 36 (2026), 29.
  • H. Hamada, G. Kohr, M. Kohr, Koebe one-quarter theorem in infinite dimensions, Journal of Functional Analysis, 290 (2026), 111237.
  • M. Kohr, V. Nistor, W.L. Wendland, The Stokes operator on manifolds with cylindrical ends, Journal of Differential Equations, 407 (2024), 345–373.
  • M. Kohr, S.E. Mikhailov, W.L. Wendland, Non-homogeneous Dirichlet-transmission problems for the anisotropic Stokes and Navier-Stokes systems in Lipschitz domains with transversal interfaces, Calculus of Variations and Partial Differential Equations, 61:198 (2022), 47 pag.
  • M. Kohr, S.E. Mikhailov, W.L. Wendland, Dirichlet and transmission problems for anisotropic Stokes and Navier-Stokes systems with L∞ tensor coefficient under relaxed ellipticity condition, Discrete and Continuous Dynamical Systems – Series A, 41 (2021), 4421-4460.
  • M. Kohr, W.L. Wendland, Boundary value problems for the Brinkman system with L∞ coefficients in Lipschitz domains on compact Riemannian manifolds. A variational approach, Journal de Mathématiques Pures et Appliquées, 131 (2019), 17-63.
  • M. Kohr, W.L. Wendland, Variational approach for the Stokes and Navier-Stokes systems with nonsmooth coefficients in Lipschitz domains on compact Riemannian manifolds, Calculus of Variations and Partial Differential Equations, 57:165 (2018), 1-41.
  • I. Graham, H. Hamada, G. Kohr, M. Kohr, Support points and extreme points for mappings with A-parametric representation in Cn, Journal of Geometric Analysis, 26 (2016) , 1560-1595.
  • M. Kohr, M. Lanza de Cristoforis, W.L. Wendland, Nonlinear Neumann -transmission problems for Stokes and Brinkman equations on Euclidean Lipschitz domains, Potential Analysis, 38 (2013), 1123-1171.
  • W. Grecksch, H. Lisei, An optimal control problem for a linear SPDE driven by a multiplicative multifractional Brownian motion, Stochastics and Dynamics, Vol. 22, No. 07, 2240020 (2022)
  • W. Grecksch, H. Lisei, B. E. Breckner, Optimal control for a nonlinear Schrödinger problem perturbed by multiplicative fractional noise, Optimization, Volume 73, 3411-3435 (2024)
  • P. Fatheddin, H. Lisei, Moderate Deviations for a Stochastic Schrodinger Equation with Linear Drift, Stochastics and Dynamics , Vol. 24, No. 06, 2450038 (2024)
  • Fractional S(P)DEs – Theory, Numerics, and Optimal Control, World Scientific Publishing, Singapore, 2025, ISBN: 978-981-98-0209-8, Editori: W. Grecksch, H. Lisei  [MR4930976, Zbl 08129034, https://search.worldcat.org/title/1535230200], https://www.worldscientific.com/worldscibooks/10.1142/14079#t=aboutBook
  • W. Grecksch, H. Lisei, Fractional Noise-Perturbed Nonlinear Schrödinger Equations: Stochastic Minimization Problems, Chapter 3 in “Fractional S(P)DEs – Theory, Numerics, and Optimal Control”, p.105-150, ISBN: 978-981-98-0209-8, World Scientific Publishing (2025).
  • A. Petrusel, R. Trusca, J.-C. Yao: Some local fixed point theorems for generalized multi-valued contractions with applications, J. Nonlinear Convex Anal. 23 (2022), no. 12, 2835-2845.
  • Breaz, S; Hrbek, M (Czech Academy of Sciences; Charles University Prague) and Modoi, GC, Silting, cosilting and extensions of commutative rings, Oct 2025 (Early Access), MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY
  • Breaz, Simion(R-CLUJMI-NDM); Brzeziński, Tomasz (Department of Mathematics, Swansea University Swansea, SA2 8PP, Wales); Rybołowicz, Bernard(Department of Mathematics, Heriot-Watt University Edinburgh, EH14 4AS, Scotland); Saracco, Paolo(Department of Algebra, Faculty of Mathematics 41080 Seville, Spain), Heaps of modules: categorical aspects.(English summary), Forum Math. Sigma 13 (2025), Paper No. e166, 25 pp.
  • Breaz, Simion(R-CLUJMI-NDM); Brzeziński, Tomasz(4-SWAN2-M); Rybołowicz, Bernard(4-HWAT); Saracco, Paolo(B-ULB), Heaps of modules and affine spaces.(English summary), Ann. Mat. Pura Appl. (4) 203 (2024), no. 1, 403–445.
  • Breaz, Simion(R-CLUJMI); Zhou, Yiqiang(Department of Mathematics and Statistics, Memorial University of Newfoundland St. John’s, Newfoundland and Labrador, A1C 5S7, Canada), When is every non central-unit a sum of two nilpotents?.(English summary)Algebra and coding theory, 47–55., Contemp. Math., 785, American Mathematical Society, [Providence], RI, [2023], ©2023, ISBN:978-1-4704-6859-0
  • Breaz, Simion(R-CLUJMI-NDM); Brzeziński, Tomasz(4-SWAN2-M), The Baer-Kaplansky theorem for all abelian groups and modules.(English summary), Bull. Math. Sci. 12 (2022), no. 1, Paper No. 2150005, 12 pp.
  • S. Crivei, D. Keskin Tütüncü, Relatively divisible and relatively flat objects in exact categories, J. Algebra Appl. (2021), 2150088 (22 pages).
  • M.K. Berktaş, S. Crivei, F. Kaynarca, Keskin Tütüncü, Uniqueness of uniform decompositions in exact categories, J. Pure Appl. Algebra 225 (2021), 106621.
  • S. Crivei, D. Keskin Tütüncü, Relatively divisible and relatively flat objects in exact categories: Applications, Appl. Algebra Engrg. Comm. Comput. 32 (2021), 365-384.
  • S. Crivei, D. Keskin Tütüncü, G. Olteanu, F-Baer objects with respect to a fully invariant short exact sequence in abelian categories, Comm. Algebra 49 (2021), 5041-5060.
  • S. Crivei, D. Keskin Tütüncü, R. Tribak, Split objects with respect to a fully invariant short exact sequence in abelian categories, Rend. Sem. Mat. Univ. Padova 147 (2022), 1-41.
  • S. Crivei, D. Keskin Tütüncü, S.M. Radu and R. Tribak, CS-Baer and dual CS-Baer objects in abelian categories, J. Algebra Appl. 22 (2023), 2350220.
  • M. Cortés-Izurdiaga, S. Crivei and M. Saorín, Reflective and coreflective subcategories, J. Pure Appl. Algebra 227 (2023), 107267.
  • S. Crivei, D. Keskin Tütüncü, G. Olteanu, Weak Rickart and dual weak Rickart objects in abelian categories: Transfer via functors, Bull. Math. Soc. Sci. Math. Roumanie 66 (114) (2023), 189-207.
  • K.P.S. Bhaskara Rao, I.E. Chiru, S. Crivei, A note on von Neumann regular matrices, Linear Multilin. Algebra 73 (2025), 2344-2353.
  • S. Crivei, D. Keskin Tütüncü, R. Tribak, On dual relative CS-Baer modules, Proc. NCRA VIII, Contemp. Math. 826 (2025).
  • S. Crivei, D. Keskin Tütüncü, G. Olteanu, Transfer of (dual) (strongly) F-Baer objects with respect to a fully invariant short exact sequence in abelian categories, J. Algebra Appl. (2025). doi: 10.1142/S0219498825420253.
  • S. Micula, G. V. Milovanović, Chapter 16: Iterative Processes and Integral Equations of the Second Kind, Book: Matrix and Operator Equations and Applications, ed. M. S. Moslehian, 2023, Springer Cham, Switzerland, Hardcover ISBN 978-3-031-25385-0, Softcover ISBN 978-3-031-25388-1, eBook ISBN 978-3-031-25386-7, https:/doi.org/10.1007/978-3-031-25386-7, care apare si in WorldCat (https://search.worldcat.org/search?q=ti%3Amatrix+and+operator+equations+and+applications)
  • S. Breaz, M. Hrbek, G. C. Modoi, Silting, cosilting, and extensions of commutative rings, Math. Proc. Cambridge Phil. Soc. 180 (2026), 363-388. DOI: https://doi.org/10.1017/S0305004125101503

Alte informații de interes

  • Studenta doctoranda Cristina GHEORGHE este membru in grantul de cercetare cu titlul : „Nonlinear Studies of Stratified Oceanic and Atmospheric Flows”, Director de proiect: Dr. Calin MARTIN, Contract de finanțare: 760040/23.05.2023, Cod proiect: PNRR-III-C9-2022-I8-CF 185/22.11.2022, Valoare proiect fără TVA: 6.515.047 RON (2022-2026);
  • Sanda Micula, membru al Technical Review Panel (pentru poziţia de tenured Associate Professor), la Univ. din Lahore, Pakistan (dec. 2023);