Institute annual report 2023

Main version: December 4, 2023.

updates: February 21, 2024 (paper of Otrocol added); December 30, 2023; December 19, 2023 (paper coordinates of Precup and of Agratini)

Human resources

Researchers

The Numerical Analysis and Approximation Theory workgroup:

Dr. Emil Cătinaş (workgroup coordinator)
Prof. Dr. Octavian Agratini
Dr. Mihai Nechita
Dr. Diana Otrocol
Imre Boros
Andra Malina
Eduard Grigoriciuc

The Numerical Modeling workgroup:

Prof. Dr. Radu Precup, corresponding member of the Romanian Academy
Dr. Călin-Ioan Gheorghiu (workgroup coordinator)
Dr. rer. nat. habil. Nicolae Suciu
Dr. Maria Crăciun
Andrei Stan
Iulia Buda

Doctoral students/postdocs:

Doctoral students in 2023:

Iulia Buda, at UBB Cluj
Eduard Grigoriciuc, at UBB Cluj
Andra Malina, Metode de aproximare a functiilor de mai multe variabile, at UBB Cluj
Andrei Stan, Nash type equilibria for systems of nonlinear equations, at UBB Cluj.

Postdoc students in 2023:

Mihai Nechita, at UBB Cluj (till September 2023)

PhD advisors

Prof. dr. Radu Precup, corresponding member of the Romanian Academy
PhD students (2023):

Andrei Stan, Nash type equilibria for systems of nonlinear equations, at UBB Cluj
Alexandru Hofman, Control problems for systems of Kolmogorov type, at UBB Cluj
Alexandru Orzan, Parametric methods for problems of fractional optimization, at UBB Cluj
David Brumar, The analysis of some mathematical models in fluid dynamics, at UBB Cluj.

Coordination of doc and postdoc students: Nataliia Kolun (Ukraine).
Mentor in some research projects: Lorand Parajdi, Mihai Nechita, Maria Neuss-Radu.

Prof. Univ. dr. Octavian Agratini
PhD students (2023):

Grapini O. Silviu-Ilie, at UBB Cluj (thesis not finalized yet)
Balogh M. Anamaria, at UBB Cluj (thesis not finalized yet)
Bunea-Domșa S. Mihai Grigore, at UBB Cluj (thesis not finalized yet).

Dr. rer. nat. habil. Nicolae Suciu
(no PhD students in 2023)

Prof. Univ. dr. Ion Păvăloiu (honorary member of ICTP till August 2023)
(no PhD students in 2023)

Papers published in 2023

Papers in JCR journals from abroad

Papers in JCR journals from Romania

V. Ilea, A. Novac, D. Otrocol, R. Precup, Nonlinear alternatives of hybrid type for nonself vector-valued maps and application, Fixed Point Theory, 24 (2023) no. 1, 221-232, http://doi.org/10.24193/fpt-ro.2023.1.11

Chapters in books in recognized publishing houses

U. Abel and O. Agratini, On Wachnicki’s Generalization of the Gauss-Weierstrass Integral, In: Candela, A.M., Cappelletti Montano, M., Mangino, E. (eds) Recent advances in Mathematical Analysis. Trends in Mathematics, October 2022, Birkhäuser, Cham., pp 1–13, 2023. https://doi.org/10.1007/978-3-031-20021-2_1

Papers published in Scopus journals

Papers in other journals

G. Motronea, D. Otrocol, I. Rasa, Perov’s theorem applied to systems of equations, Modern Mathematical Methods, 1 (2023) no. 1, pp. 22-29.

Papers accepted and published online

Preprints in Arxiv/submitted

E. Burman, M. Nechita, L. Oksanen, Optimal finite element approximation of unique continuation, arXiv 2311.07440 (2023), https://arxiv.org/abs/2311.07440
M. Crăciun, T. Harko, Testing Weyl geometric gravity with the SPARC galactic rotation curves database, submitted to Physics of Dark Universe, https://doi.org/10.48550/arXiv.2311.16893
A. Pop, M. Crăciun, Detection and Detectability. The Case of TOI-763, submitted to New Astronomy
A. Pop, M. Crăciun, Detection and Detectability: Evidence for a Low Amplitude Orbital Period Modulation in the Algol-type Binary U Coronae Borealis
A. Stan, Role of partial functionals in the study of variational systems, https://arxiv.org/abs/2311.15552

Prizes, outstanding achievements

E. Cătinaș, has won the 2023 “Gr. Moisil” prize of the Romanian Academy for the paper E. Cătinaş, How many steps still left to x*?, SIAM Rev. 63 (2021) no. 3, pp. 585–624.
Prof. Dr. R. Precup has H-index ISI 16: https://www.webofscience.com/wos/author/rid/B-8158-2011 (h-index Google Scholar 23)
Dr. rer. nat. habil. N. Suciu has H-index ISI 13: https://www.webofscience.com/wos/author/rid/N-7971-2017 (h-index Google Scholar 14)
Prof. Dr. O. Agratini has H-index ISI 10: https://www.webofscience.com/wos/author/rid/B-6607-2012 (h-index Google Scholar 20)

Since 2022, O. Agratini is professor emeritus at the Faculty of Mathematics and Computer Science (Babeş-Bolyai University).

Editorial activity

Editors-in-Chief/deputy/senior editors of JCR/ISI or Scopus journals

R. Precup, Editor-in-Chief of Studia UBB Math. (ISI/ESCI)
R. Precup, Deputy Editor-in-Chief of Fixed Point Theory (Cluj) (ISI)
O. Agratini, Editor-in-Chief of J. Numer. Anal. Approx. Theory (Scopus)
E. Cătinaş, Editor-in-Chief of J. Numer. Anal. Approx. Theory (Scopus)
I. Păvăloiu, deputy Editor-in-Chief of J. Numer. Anal. Approx. Theory (till August 2023) (Scopus)
O. Agratini, senior Editor of Studia UBB Math. (ISI/ESCI)

Members of editorial boards of JCR/ISI journals

– JCR/ISI journals abroad

R. Precup, section Editor of Fixed Point Theory and Algorithms for Sciences and Engineering (Springer);
R. Precup, editor of Journal of Inequalities and Special Functions.

– JCR/ISI journals from Romania

R. Precup, member of the Editorial Board of Proceedings of the Romanian Academy- Series A
R. Precup, member of the Editorial Board of Carpathian Journal of Mathematics
R. Precup, Deputy Editor-in-Chief of Fixed Point Theory (Cluj)
R. Precup, Editor-in-Chief of Studia UBB Math.
O. Agratini, senior Editor of Studia UBB Math.
O. Agratini, member of the Editorial Board of J. Science and Arts;

Members of editorial boards of journals of the Romanian Academy

O. Agratini, Editor-in-Chief of J. Numer. Anal. Approx. Theory
E. Cătinaş, Editor-in-Chief of J. Numer. Anal. Approx. Theory
I. Păvăloiu, deputy Editor-in-Chief of J. Numer. Anal. Approx. Theory (till August 2023)
M. Nechita, secretary of J. Numer. Anal. Approx. Theory
A. Malina, secretary of J. Numer. Anal. Approx. Theory
A. Stan, secretary of J. Numer. Anal. Approx. Theory
R. Precup, member of the Editorial Board of Mathematica (Cluj)
O. Agratini, member of the Editorial Board of Mathematica (Cluj)

Members of editorial boards of other journals from abroad

R. Precup, member of the Editorial Board of Discussiones Mathematicae Differential Inclusions, Control and Optimization (Poland);
O. Agratini, member of the Editorial Board of Open Journal of Discrete Mathematics;
R. Precup, member of the Editorial Board of Mathematics in Engineering, Science and Aerospace (USA).

Members of editorial boards of other journals from Romania

R. Precup, member of the Editorial Board of Transylvanian Journal of Mathematics and Mechanics;
N. Suciu, member of the Editorial Board of ROMAI Journal
C.I. Gheorghiu, member of the Editorial Board of ROMAI Journal

Conferences

Conferences organized by the Institute

The international conference Numerical Analysis, Numerical Modeling, Approximation Theory (NA-NM-AT 2022), November 6-9, 2023 (organized by ICTP)
Fifth Romanian Itinerant Seminar on Mathematical Analysis and its Applications, Craiova, May 26-28, 2023 (co-organized by ICTP)
NANMAT Workshop for Young PhD students, November 25-26, 2023, Belis, Cluj (organized by ICTP).

Institute members in the scientific committees of international or national conferences

R. Precup, Fifth Romanian Itinerant Seminar on Mathematical Analysis and Its Applications, Craiova 26–28 May 2023. http://rismaa.ucv.ro/
O. Agratini, 17th International Conference on Applied Mathematics and Computer Science, Cluj-Napoca, July 11-13, 2023, http://tucn.ro/angheluta2023/

Institute members in the organizing committees of international or national conferences

R. Precup, The Tenth Congress of Romanian Mathematicians, June 30-July 5, 2023, Piteşti, Romania. (member in the organizing committee of Section 4) http://www.imar.ro/~congmatro10/index.html
R. Precup, Fifth Romanian Itinerant Seminar on Mathematical Analysis and Its Applications, Craiova 26–28 May 2023 (coordinator) http://rismaa.ucv.ro/
R. Precup, Mathematical Modelling Analysis and Simulation with Applications to Biomedical Processes (Workshop), Cluj-Napoca, October 9-10, 2023 (coorganizer)
E. Grigoriciuc, Workshop: Geometric Function Theory in Several Complex Variables and Complex Banach Spaces, Cluj- Napoca, December 1-2, 2023. https://math.ubbcluj.ro/workshop_gk/

Invited speakers:

N. Suciu, Random walk methods for reactive transport in porous media, invited talk at Karlstad Applied Analysis Seminar (KAAS), Karlstadt University, Sweden, February 8, 2023. Karlstad Applied Analysis Seminar (KAAS) | Karlstads universitet (kau.se)
R. Precup, Explicit and implicit control problems. A fixed point approach, International Meetings on Differential Equations and Their Applications, University of Technology, Lodz, Poland, 8 martie 2023, https://im.p.lodz.pl/IMDETA/index.php/schedule/summer-semester-2023
R. Precup, Energy-localization in Navier-Stokes models with reaction terms, The Tenth Congress of Romanian Mathematicians, Piteşti, June 30 – July 5. http://www.imar.ro/~congmatro10/index.html
R. Precup, Energy-localization in Navier-Stokes models, Workshop: Geometric Function Theory in Several Complex Variables and Complex Banach Spaces, Cluj- Napoca, December 1-2, 2023. https://math.ubbcluj.ro/workshop_gk/
M. Nechita, Unique continuation for the Helmholtz equation using conforming FEM and physics-informed neural networks, Workshop: Simulation of data assimilation under a PDE constraint, Sorbonne Université, Paris, November 16-17, 2023, https://www.ljll.math.upmc.fr/delay/workshop_data_assimilation

Talks given/conferences attended by the members of the Institute

International conferences

O. Agratini, On a generalization of the Gauss-Weierstrass operators, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
I. Boros, Can AI aid in solving stiff ODEs? Harnessing physics-informed neural networks for stiff ordinary differential equations, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
E. Cătinaş, The speed of the strict superlinear convergence, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
M. Crăciun, On some methods of fitting models to observational data, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
M. Crăciun, T. Harko, Observational constraints on Weyl geometric gravity from the SPARC galactic rotation curves database, 7th International Conference in Astronomy, Astrophysics, Space and Planetary Sciences, 10-12 July 2023, Cluj Napoca, https://acad-cj.ro/acte/manifestari/ConferenceAbstractBook2023_RevVT.pdf
A. Pop, M. Crăciun, Orbital period variability of U CrB – a new approach, 7th International Conference in Astronomy, Astrophysics, Space and Planetary Sciences, 10-12 July 2023, Cluj Napoca, https://acad-cj.ro/acte/manifestari/ConferenceAbstractBook2023_RevVT.pdf
C.-I. Gheorghiu, Spectral collocation methods for some pseudo-parabolic problems. Numerical experiments, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
E. Grigoriciuc, Subclasses of univalent mappings in \(\mathbb{C}^n\) and the Graham-Kohr extension operator, 9th International Conference on Mathematics and Informatics, Sapientia Hungarian University of Transylvania (Department of Mathematics and Informatics), Târgu Mureş, Romania, 7-8 September 2023;
E. Grigoriciuc, g-Loewner chains and the Graham-Kohr extension operator in complex Banach spaces, Geometric Function Theory in Several Complex Variables and Complex Banach Spaces, 3rd Edition of The Workshop dedicated to the memory of Professor Gabriela Kohr, Faculty of Mathematics and Computer Science, “Babeş-Bolyai” University, Cluj-Napoca (Romania), 1-3 December 2023;
A. Malina, Combined Shepard operators applied in image reconstruction, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
A. Malina, An application of the Shepard operator in image reconstruction, 9th International Conference on Mathematics and Informatics (MathInfo), September 7-8, 2023, Târgu Mureș, Romania.
M. Nechita, Data assimilation for fluid-structure interaction. Applications to 4d-flow MRI, The Tenth Congress of Romanian Mathematicians, June 30 – July 5, 2023, Pitești, http://www.imar.ro/~congmatro10/
M. Nechita, Unique continuation for the Helmholtz equation using conforming FEM and physics-informed neural networks, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
M. Nechita, Ill-posed data assimilation problems: analysis and numerics, Workshop “Mathematical Modelling, Analysis and Simulation with Applications to Biomedical Processes” – STAR-UBB (ubbcluj.ro), Cluj-Napoca, October 9-10, 2023.
D. Otrocol, Ulam stability of a partial differential operator in Banach spaces, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
D. Otrocol, On Ulam stability of a partial differential operator in Banach spaces, 59th International Symposium on Functional Equations, Hajdúszoboszló, Hungary, June 18-25, 2023.
D. Otrocol, Ulam stability of a partial differential operator in Banach spaces, 17th International Conference on Applied Mathematics and Computer Science, July 11-13, 2023, Cluj-Napoca, Romania, http://tucn.ro/angheluta2023/
R. Precup, Energy-localization in Navier-Stokes models, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
R. Precup, Control of cell evolution after bone marrow transplantation, Workshop “Mathematical Modelling, Analysis and Simulation with Applications to Biomedical Processes” – STAR-UBB (ubbcluj.ro), Cluj-Napoca, October 9-10, 2023.
A. Stan, Localization of Nash equilibria for systems with partial variational structure, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
N. Suciu, Random walk methods for reactive transport in porous media, The Tenth Congress of Romanian Mathematicians, June 30 – July 5, 2023, http://www.imar.ro/~congmatro10/ Piteşti, Romania
N. Suciu, Space–time upscaling of reactive transport in porous media, Numerical Analysis, Numerical Modeling and Approximation Theory (NANMAT 2023), November 6-9, 2023, Cluj-Napoca (virtual).
N. Suciu, F.A. Radu, J.S. Stokke, E. Cătinaş, A. Malina, Computational orders of convergence for Richards’ equation, ENUMATH 2023, September 4-8, Lisbon, MS39 | Numerical methods for nonlinear and coupled processes (flow, reactive transport and deformation) in porous media. https://enumath2023.com/

National conferences

O. Agratini, The misterious wavelet world, NANMAT Workshop for Young PhD Students, November 25-26, Beliş, Cluj.
M. Crăciun, Introduction to time series analysis, NANMAT Workshop for Young PhD Students, November 25-26, Beliş, Cluj.
C. -I. Gheorghiu, Spectral Collocation Solutions to some Linear Pseudo-parabolic Problems, ROMAI Annual Conference, Univ. Al. I. Cuza, Iaşi, Septembrie, 2023, CAIM 23 (romai.ro)
R. Precup, Localization of solutions for semilinear problems with poly-Laplace type operators, Fifth Romanian Itinerant Seminar on Mathematical Analysis and its Applications, Craiova, May 26-28, http://rismaa.ucv.ro/
N. Suciu, Stochastic simulations for diffusion processes, NANMAT Workshop for Young PhD Students, November 25-26, Beliş, Cluj.

Presentations at seminars

M. Nechita, Ill-posed problems for linear PDEs: analysis and numerics, Seminar de Analiză și Optimizare, Univ. Babes-Bolyai, 04.2023.
R. Precup, Existence results for some functional integrodifferential equations with state-dependent delay, Seminar on Nonlinear Operators and Differential Equations, Cluj-Napoca, 9 martie 2023. http://www.math.ubbcluj.ro/~nodeacj/soned.html
R. Precup, Localization of the enstrophy and kinetic energy in Navier-Stokes models with reaction terms, Seminar on Nonlinear Operators and Differential Equations, Cluj-Napoca 4 mai 2023.
R. Precup, Positive radial solutions for Dirichlet problems in the ball, Seminar on Nonlinear Operators and Differential Equations, Cluj-Napoca 19 octombrie 2023
R. Precup, Matematica in sprijinul stiintelor aplicate. Cazul specific al medicinei. Seminarul Studium Generale, Cluj-Napoca, 23 noiembrie 2023. https://www.youtube.com/watch?v=yfJ9L3fzCEc

Scientific collaborations

ICTP has signed in July 2023 a collaboration protocol with Data and Predictive Analytics Center (DPAC – Rochester University, USA), based on some existing collaborations. The agreement aims in solving some problems in the analysis, processing and modelling of some time series from astronomy.

International scientific collaborations

N. Suciu, collaboration with F.A. Radu, from Univ. of Bergen, Norway
N. Suciu, collaboration with I.S. Pop, Univ. of Hasselt, Belgium
E. Cătinaş, collaboration with F.A. Radu, from Univ. of Bergen, Norway
R. Precup, collaboration with Jorge Rodriguez-Lopez, from Univ. of Santiago de Compostela, Spain
R. Precup, collaboration with Sylvain Koumla (Univ. Abéché, Chad);
R. Precup, collaboration with Christian Guenther (Univ. Hannover, Germany);
R. Precup, collaboration with Maria Neuss-Radu (Erlangen, Germany);
R. Precup, collaboration with Renata Bunoiu (Univ. Lorraine, France)
M. Nechita, collaboration with Erik Burman, University College London, https://iris.ucl.ac.uk/iris/browse/profile?upi=ENBUR31
M. Nechita, collaboration with Lauri Oksanen, University of Helsinki, https://www.helsinki.fi/en/about-us/people/people-finder/lauri-oksanen-9110566
M. Nechita, collaboration with Miguel A. Fernández, INRIA Paris, https://team.inria.fr/commedia/fernandez/
O. Agratini, collaboration with Ulrich Abel, Technische Hochschule Mittelhessen, Friedberg, Germany
O. Agratini, collaboration with Harun Karsli, Abant Izzet Baysal University, Bolu, Turkey
M. Craciun, collaboration with Mihai Barbosu, Rochester Institute of Technology, New York, USA,
Mihail Barbosu | RIT, https://www.rit.edu/directory/mxbsma-mihail-barbosu

National scientific collaborations

O. Agratini, collaboration with Ivan Mircea, Technical University Cluj-Napoca
O. Agratini, collaboration with Radu Păltănea, Transilvania University of Brașov
M. Craciun, collaboration with Tiberiu Harko, from Univ. Babes-Bolyai (‪Tiberiu Harko‬ – ‪Google Academic‬)
M. Craciun, collaboration with Alexandru Pop, Astronomical Institute, Astronomical Observatory Cluj-Napoca, Romanian Academy, (‪Alexandru Viorel Pop‬ – ‪Google Academic‬)
A. Malina, collaboration with Teodora Catinas, from the Babes-Bolyai University, Cluj-Napoca
E. Grigoriciuc, collaboration with Mirela Kohr, from the Babes-Bolyai University, Cluj-Napoca
R. Precup, collaboration with Petru Jebelean (Univ. de Vest, Timisoara);
R. Precup, collaboration with Mirela Kohr (UBB Cluj-Napoca);
R. Precup, collaboration with Nataliia Kolun (UBB Cluj-Napoca);
R. Precup, collaboration with Lorand Parajdi,
R. Precup, collaboration with Veronica Ilea (UBB Cluj-Napoca);
R. Precup, collaboration with Adela Novac (Univ. Tehnica, Cluj-Napoca);
R. Precup, collaboration with Stefan Haplea (UMF Cluj-Napoca);

Membership in professional organizations

N. Suciu member: GAMM (Gesellschaft für angewandte Mathematik und Mechanik) (2019 şi 2020), EGU (European Geosciences Union) (2019-2021), InterPore (International Society for Porous Media) (2021-2023).
R. Precup, O. Agratini, D. Otrocol: SSMR (Societatea de Științe Matematice din România) members.
E. Cătinaş, SIAM (Society for Industrial and Applied Mathematics) member (since 2007?), SSMR (Societatea de Științe Matematice din România),
Grigoriciuc: AMS (American Mathematical Society) member (since 2021), LMS (London Mathematical Society) member (since 2021), EMS (European Mathematical Society) member (since 2021), CMS (Canadian Mathematical Society) member (2021-2022)
C.I. Gheorghiu, vicepresident ROMAI (Societatea Română de Matematică Aplicată și Industrială) 2018-2021, membru GAMM (Gesellschaft für angewandte Mathematik und Mechanik), ECMI (European Consortium for Mathematics in Industry)
O. Agratini: AMS (American Mathematical Society) member.

Grants/contracts/scholarships

Subventionarea literaturii tehnico-stiintifice 2023 (37245 lei), director: E. Cătinaş

Peer review

Members of national committees

Prof. dr. O. Agratini was (up to July 30, 2023) a permanent expert member of ARACIS, in committee C1 (exact sciences and natural sciences/Stiinte exacte si stiinte ale naturii), see https://www.aracis.ro/comisii-de-experti-permanenti/

Members of PhD/habilitation evaluation committees

R. Precup, for thesis with title: Monotonicity and variational methods in Banach spaces with applications in differential equations driven by nonlinear operators, 2023, by Michal Beldzinski, Lodz University of Technology, Poland, March 8, 2023
O. Agratini, for thesis with title: Sublinear and monotone operators in approximation, by Iancu Ionuț Tudor, Oradea University, April 28, 2023.
R. Precup, for habilitation with title: Elliptic Problems Driven by Generalized Laplace Operators, 2023, by Maria-Magdalena Boureanu, University of Craiova, April 7
O. Agratini, for habilitation with title: Numerical methods in mathematical inequalities, by Bercu Gabriel Dumitru, Polytechnic University of Bucharest, July 18, 2023.

Members of PhD supervising committees

R. Precup for: Cristina Gheorghe (supervisor: A. Petrusel);
R. Precup for: Florin Albisoru (supervisor: M. Kohr)
R. Precup for: I. Papuc (supervisor: M. Kohr)
R. Precup for: M. Aron (supervisor: M. Kohr)
R. Precup for: A. Gasparovici (supervisor: M. Kohr),
R. Precup for: Andra Malina, Metode de aproximare a functiilor de mai multe variabile (supervisor: T. Catinas)
R. Precup for: Iulia Buda (supervisor: T. Cătinaș)
O. Agratini for: Alin Fodor (supervisor C. Pintea);
O. Agratini for: Andra Malina, Metode de aproximare a functiilor de mai multe variabile (supervisor: T. Cătinaș)
O. Agratini for: Iulia Buda (supervisor: T. Cătinaș)
O. Agratini, for Șuțu Mădălina (supervisor T. Cătinaș)

Referee reports for peer reviewed journals:

O. Agratini: Dolomites Research Note on Approximation (1), Applicable Analysis and Discrete Mathematics (1), Khayyam Journal of Mathematics (1), Studia UBB Math. (3), J. Numer. Anal. Approx. Theory (5);
E. Cătinaș: J. Numer. Anal. Approx. Theory (11), Studia Univ. Babes-Bolyai Math. (1), ICEMES2023 (1);
I. Boros: J. Numer. Anal. Approx. Theory (2);
C.I. Gheorghiu: Mathematics (1), Physica scripta (2), European Physical Journal Plus (2);
M. Nechita: IMA J. Numer. Anal. (1), ESAIM: Math. Modelling Numer. Anal. (1), Studia Univ. Babeș-Bolyai Math. (1), J. Numer. Anal. Approx. Theory (4)
R. Precup: J. Optim. Theory (1); Fixed Point Theory (2); Results in Mathematics (1); Mathematica (3); Qualitative Theory of Dynamical Systems (4); Studia Univ. Babes-Bolyai Math. (6);
N. Suciu: Comput. Appl. Math. (3), J. Numer. Anal. Approx. Theory (2)

Expert evaluators:

O. Agratini, for Grant ERG, Lucian Blaga University, Sibiu (May, 2023)

Book reviews:

R. Precup: 1 book review
M. Nechita: 2 = book review + book review
I. Boros: 3 = book review + book review + book review.

Reviews (written in 2023)

for Mathematical Reviews:

O. Agratini: MR4514184, MR4560303
R. Precup: MR4530439
C. Mustăța (honorary member): MR4624439, MR4602447, MR4595224, MR4582566, MR4573496.

For ZBL Math:

R. Precup: Zbl 1526.49011.
C.I. Gheorghiu: Zbl 07760983, Zbl 1522.65202, Zbl 1522.65235, Zbl 1520.76050, Zbl 1520.76051, Zbl 1517.65114, Zbl 1506.65219, Zbl 1502.65225.

2022

2023

2024