Michel Théra

2.7k total citations
91 papers, 1.3k citations indexed

About

Michel Théra is a scholar working on Computational Theory and Mathematics, Mathematical Physics and Geometry and Topology. According to data from OpenAlex, Michel Théra has authored 91 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 78 papers in Computational Theory and Mathematics, 34 papers in Mathematical Physics and 32 papers in Geometry and Topology. Recurrent topics in Michel Théra's work include Optimization and Variational Analysis (70 papers), Fixed Point Theorems Analysis (28 papers) and Advanced Optimization Algorithms Research (25 papers). Michel Théra is often cited by papers focused on Optimization and Variational Analysis (70 papers), Fixed Point Theorems Analysis (28 papers) and Advanced Optimization Algorithms Research (25 papers). Michel Théra collaborates with scholars based in France, Australia and Vietnam. Michel Théra's co-authors include Huynh Van Ngai, Samir Adly, Jean‐Paul Penot, Abdellatif Moudafi, W. Oettli, Juan Enrique Martínez-Legaz, Alexander Y. Kruger, D. Goeleven, Jonathan M. Borwein and Dinh The Luc and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Mathematical Analysis and Applications and Mathematical Programming.

In The Last Decade

Michel Théra

80 papers receiving 1.2k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Michel Théra France 20 1.1k 556 519 308 234 91 1.3k
Alberto Seeger France 20 993 0.9× 732 1.3× 329 0.6× 362 1.2× 105 0.4× 115 1.3k
Genaro López-Acedo Spain 22 1.6k 1.5× 1.0k 1.8× 1.0k 1.9× 430 1.4× 337 1.4× 47 1.9k
Kung Fu Ng Hong Kong 17 744 0.7× 546 1.0× 236 0.5× 135 0.4× 102 0.4× 38 789
G. Kassay Romania 21 1.0k 0.9× 582 1.0× 403 0.8× 271 0.9× 68 0.3× 56 1.1k
R. A. Poliquin Canada 11 762 0.7× 476 0.9× 171 0.3× 203 0.7× 169 0.7× 21 890
Mihai Postolache Romania 26 1.1k 1.0× 723 1.3× 1.3k 2.6× 266 0.9× 109 0.5× 119 1.9k
Nguyen Mau Nam United States 18 682 0.6× 513 0.9× 218 0.4× 108 0.4× 95 0.4× 54 820
Jean-Bernard Baillon France 13 529 0.5× 270 0.5× 261 0.5× 184 0.6× 274 1.2× 28 742
Alexander Y. Kruger Australia 18 566 0.5× 410 0.7× 216 0.4× 123 0.4× 81 0.3× 60 716
Rafael Corrêa Chile 13 637 0.6× 441 0.8× 108 0.2× 160 0.5× 146 0.6× 51 855

Countries citing papers authored by Michel Théra

Since Specialization
Citations

This map shows the geographic impact of Michel Théra's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Michel Théra with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Michel Théra more than expected).

Fields of papers citing papers by Michel Théra

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Michel Théra. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Michel Théra. The network helps show where Michel Théra may publish in the future.

Co-authorship network of co-authors of Michel Théra

This figure shows the co-authorship network connecting the top 25 collaborators of Michel Théra. A scholar is included among the top collaborators of Michel Théra based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Michel Théra. Michel Théra is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Dao, Minh N., et al.. (2025). Solving Non-Monotone Inclusions Using Monotonicity of Pairs of Operators. Journal of Optimization Theory and Applications. 207(1).
2.
Gala, Sadek, et al.. (2024). A Blowup Criteria of Smooth Solutions to the 3D Boussinesq Equations. Bulletin of the Brazilian Mathematical Society New Series. 55(1).
3.
Théra, Michel, et al.. (2024). Fixed points of regular set-valued mappings in quasi-metric spaces. Optimization. 1–27.
4.
Barbagallo, Annamaria, et al.. (2019). Orthogonality in locally convex spaces: Two nonlinear generalizations of Neumann's lemma. Journal of Mathematical Analysis and Applications. 484(1). 123663–123663. 1 indexed citations
5.
Théra, Michel, et al.. (2017). Ekeland's inverse function theorem in graded Fréchet spaces revisited for multifunctions. Journal of Mathematical Analysis and Applications. 457(2). 1403–1421. 3 indexed citations
6.
Kruger, Alexander Y., Huynh Van Ngai, & Michel Théra. (2010). Stability of Error Bounds for Convex Constraint Systems in Banach Spaces. SIAM Journal on Optimization. 20(6). 3280–3296. 31 indexed citations
7.
Adly, Samir, et al.. (2010). Nonsmooth Lyapunov pairs for infinite-dimensional first-order differential inclusions. Nonlinear Analysis. 75(3). 985–1008. 13 indexed citations
8.
Théra, Michel, et al.. (2004). A converse to the Eidelheit theorem in real Hilbert spaces. Bulletin des Sciences Mathématiques. 129(5). 381–397. 2 indexed citations
9.
Théra, Michel, et al.. (2004). Slice-continuous sets in reflexive Banach spaces: convex constrained optimization and strict convex separation. Journal of Functional Analysis. 223(1). 179–203. 6 indexed citations
10.
Pennanen, Teemu, J. P. Revalski, & Michel Théra. (2003). Variational composition of a monotone operator and a linear mapping with applications to elliptic PDEs with singular coefficients. Journal of Functional Analysis. 198(1). 84–105. 3 indexed citations
11.
Ngai, Huynh Van, Dinh The Luc, & Michel Théra. (2002). Extensions of Fréchet ϵ-Subdifferential Calculus and Applications. Journal of Mathematical Analysis and Applications. 268(1). 266–290. 9 indexed citations
12.
Lucchetti, Roberto, J. P. Revalski, & Michel Théra. (2002). Critical points for vector valued functions. Control and Cybernetics. 31(3). 545–555. 3 indexed citations
13.
Théra, Michel & Huynh Van Ngai. (2002). A fuzzy necessary optimality condition for non-Lipschitz optimization in Asplund spaces. HAL (Le Centre pour la Communication Scientifique Directe). 18 indexed citations
14.
Revalski, J. P. & Michel Théra. (1999). Generalized sums of monotone operators. Comptes Rendus de l Académie des Sciences - Series I - Mathematics. 329(11). 979–984. 9 indexed citations
15.
Attouch, Hédy, Hassan Riahi, & Michel Théra. (1996). Somme Ponctuelle D'operateurs Maximaux Monotones Pointwise Sum of two Maximal Monotone Operators. 22(3). 267–292. 9 indexed citations
16.
Beer, Gerald & Michel Théra. (1994). Attouch-Wets convergence and a differential operator for convex functions. Proceedings of the American Mathematical Society. 122(3). 851–858. 10 indexed citations
17.
Théra, Michel. (1991). Existence results for the nonlinear complementarity problem and applications to nonlinear analysis. Journal of Mathematical Analysis and Applications. 154(2). 572–584. 17 indexed citations
18.
Théra, Michel, et al.. (1991). Fixed point theory and applications. 177 indexed citations
19.
Borwein, Jonathan M., Jean‐Paul Penot, & Michel Théra. (1984). Conjugate convex operators. Journal of Mathematical Analysis and Applications. 102(2). 399–414. 29 indexed citations
20.
Théra, Michel. (1981). Subdifferential calculus for convex operators. Journal of Mathematical Analysis and Applications. 80(1). 78–91. 14 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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