Cătălin Badea

618 total citations
42 papers, 311 citations indexed

About

Cătălin Badea is a scholar working on Mathematical Physics, Applied Mathematics and Computational Theory and Mathematics. According to data from OpenAlex, Cătălin Badea has authored 42 papers receiving a total of 311 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Mathematical Physics, 22 papers in Applied Mathematics and 11 papers in Computational Theory and Mathematics. Recurrent topics in Cătălin Badea's work include Holomorphic and Operator Theory (18 papers), Spectral Theory in Mathematical Physics (11 papers) and Advanced Operator Algebra Research (6 papers). Cătălin Badea is often cited by papers focused on Holomorphic and Operator Theory (18 papers), Spectral Theory in Mathematical Physics (11 papers) and Advanced Operator Algebra Research (6 papers). Cătălin Badea collaborates with scholars based in France, Romania and Czechia. Cătălin Badea's co-authors include Sophie Grivaux, Dorin Andrica, Heiner Gonska, Veronika Müller, Mostafa Mbekhta, Michel Crouzeix, Bernard Delyon, Vern I. Paulsen, Ioan Raşa and Ionel Balcu and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Mathematical Analysis and Applications and Transactions of the American Mathematical Society.

In The Last Decade

Cătălin Badea

33 papers receiving 255 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Cătălin Badea France	11	194	121	89	72	64	42	311
Paweł Wójcik Poland	11	153 0.8×	135 1.1×	44 0.5×	108 1.5×	26 0.4×	52	251
Juan Arias de Reyna Spain	9	114 0.6×	98 0.8×	26 0.3×	49 0.7×	30 0.5×	35	215
Vicente Montesinos Santalucía	2	135 0.7×	220 1.8×	50 0.6×	101 1.4×	20 0.3×	3	284
Danuta Przeworska‐Rolewicz Poland	8	148 0.8×	106 0.9×	17 0.2×	82 1.1×	43 0.7×	57	277
Szymon Głąb Poland	10	191 1.0×	225 1.9×	63 0.7×	40 0.6×	21 0.3×	47	305
Yu. A. Brudnyi Israel	7	235 1.2×	157 1.3×	54 0.6×	33 0.5×	51 0.8×	18	287
Richard Bouldin United States	9	199 1.0×	179 1.5×	32 0.4×	177 2.5×	25 0.4×	40	309
A. G. Kusraev Russia	9	117 0.6×	221 1.8×	77 0.9×	89 1.2×	27 0.4×	59	334
Jacek Chmieliński Poland	12	168 0.9×	125 1.0×	42 0.5×	85 1.2×	20 0.3×	34	265
Ritsuo Nakamoto Japan	11	307 1.6×	91 0.8×	38 0.4×	131 1.8×	12 0.2×	59	367

Countries citing papers authored by Cătălin Badea

Since Specialization

Citations

This map shows the geographic impact of Cătălin Badea'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 Cătălin Badea with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Cătălin Badea more than expected).

Fields of papers citing papers by Cătălin Badea

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Cătălin Badea. 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 Cătălin Badea. The network helps show where Cătălin Badea may publish in the future.

Co-authorship network of co-authors of Cătălin Badea

This figure shows the co-authorship network connecting the top 25 collaborators of Cătălin Badea. A scholar is included among the top collaborators of Cătălin Badea 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 Cătălin Badea. Cătălin Badea is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Badea, Cătălin, et al.. (2021). Hilbert space operators with two-isometric dilations. Journal of Operator Theory. 86(1). 93–123. 7 indexed citations

Badea, Cătălin & Sophie Grivaux. (2020). Kazhdan constants, continuous probability measures with large Fourier coefficients and rigidity sequences. Commentarii Mathematici Helvetici. 95(1). 99–127. 1 indexed citations

Badea, Cătălin, et al.. (2018). The Cauchy dual and 2-isometric liftings of concave operators. Journal of Mathematical Analysis and Applications. 472(2). 1458–1474. 18 indexed citations

Badea, Cătălin, et al.. (2016). Ritt operators and convergence in the method of alternating projections. Journal of Approximation Theory. 205. 133–148. 4 indexed citations

Badea, Cătălin, et al.. (2013). Achievement of an omnidirectional sound source of high power.. INMATEH Agricultural Engineering. 41(3). 27–30. 1 indexed citations

Badea, Cătălin, Sophie Grivaux, & Veronika Müller. (2009). A generalization of the Friedrichs angle and the method of alternating projections. Comptes Rendus Mathématique. 348(1-2). 53–56. 8 indexed citations

Badea, Cătălin, Sophie Grivaux, & Veronika Müller. (2009). Epsilon-hypercyclic operators. Ergodic Theory and Dynamical Systems. 30(6). 1597–1606. 5 indexed citations

Badea, Cătălin & Veronika Müller. (2008). On weak orbits of operators. Topology and its Applications. 156(7). 1381–1385. 10 indexed citations

Badea, Cătălin, Sophie Grivaux, & Veronika Müller. (2008). Multiples of hypercyclic operators. Proceedings of the American Mathematical Society. 137(4). 1397–1403. 7 indexed citations

10.

Badea, Cătălin & Sophie Grivaux. (2007). Size of the peripheral point spectrum under power or resolvent growth conditions. Journal of Functional Analysis. 246(2). 302–329. 5 indexed citations

11.

Badea, Cătălin, et al.. (2007). Rehabilitation of Existing Structures Subjected to Extreme Events. SHILAP Revista de lepidopterología. 1 indexed citations

12.

Badea, Cătălin & Sophie Grivaux. (2006). Unimodular eigenvalues, uniformly distributed sequences and linear dynamics. Advances in Mathematics. 211(2). 766–793. 31 indexed citations

13.

Badea, Cătălin, et al.. (2002). Constrained von Neumann Inequalities. Advances in Mathematics. 166(2). 260–297. 16 indexed citations

14.

Badea, Cătălin & Mostafa Mbekhta. (2001). The Stability Radius of Fredholm Linear Pencils. Journal of Mathematical Analysis and Applications. 260(1). 159–172.

15.

Badea, Cătălin & Vern I. Paulsen. (2001). Schur multipliers and operator-valued Foguel-Hankel operators. Indiana University Mathematics Journal. 50(4). 1509–1522. 6 indexed citations

16.

Badea, Cătălin. (1998). The Stable Rank of Topological Algebras and a Problem of R. G. Swan. Journal of Functional Analysis. 160(1). 42–78. 6 indexed citations

17.

Badea, Cătălin. (1995). K-functionals and moduli of smoothness of functions defined on compact metric spaces. Computers & Mathematics with Applications. 30(3-6). 23–31. 12 indexed citations

18.

Badea, Cătălin, et al.. (1995). Bögel Functions, Tensor Products and Blending Approximation. Mathematische Nachrichten. 173(1). 25–48. 2 indexed citations

19.

Badea, Cătălin, et al.. (1988). A Korovkin-type theorem for generalizations of boolean sum operators and approximation by trigonometric pseudopolynomials. SHILAP Revista de lepidopterología. 3 indexed citations

20.

Badea, Cătălin, et al.. (1987). On the order of simultaneous approximation of bivariate functions by Bernstein operators. SHILAP Revista de lepidopterología. 1 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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