G. Isac

4.8k total citations · 1 hit paper
91 papers, 2.9k citations indexed

About

G. Isac is a scholar working on Computational Theory and Mathematics, Numerical Analysis and Applied Mathematics. According to data from OpenAlex, G. Isac has authored 91 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Computational Theory and Mathematics, 36 papers in Numerical Analysis and 32 papers in Applied Mathematics. Recurrent topics in G. Isac's work include Optimization and Variational Analysis (49 papers), Advanced Optimization Algorithms Research (29 papers) and Fixed Point Theorems Analysis (17 papers). G. Isac is often cited by papers focused on Optimization and Variational Analysis (49 papers), Advanced Optimization Algorithms Research (29 papers) and Fixed Point Theorems Analysis (17 papers). G. Isac collaborates with scholars based in Canada, Australia and United States. G. Isac's co-authors include Themistocles M. Rassias, D. H. Hyers, Th. M. Rassias, Vyacheslav V. Kalashnikov, Yun-Bin Zhao, S. Z. Németh, Michael M. Kostreva, George Xianzhi Yuan, M Cojocaru and M. Seetharama Gowda and has published in prestigious journals such as Lecture notes in mathematics, Journal of Mathematical Analysis and Applications and SIAM Journal on Control and Optimization.

In The Last Decade

G. Isac

90 papers receiving 2.5k citations

Hit Papers

Stability of Functional Equations in Several Variables 1998 2026 2007 2016 1998 250 500 750 1000
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Stability of Functional Equations in Several Variables
    1998 1.2k citations G. Isac et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
G. Isac Canada 23 1.9k 1.1k 832 674 572 91 2.9k
Zsolt Páles Hungary 25 1.6k 0.8× 660 0.6× 394 0.5× 343 0.5× 404 0.7× 173 2.0k
Sam B. Nadler United States 15 804 0.4× 1.2k 1.1× 264 0.3× 854 1.3× 2.7k 4.7× 81 3.4k
Dušan Repovš Slovenia 26 2.4k 1.2× 2.2k 2.0× 384 0.5× 1.5k 2.2× 906 1.6× 338 3.6k
Ngai‐Ching Wong Taiwan 16 344 0.2× 864 0.8× 509 0.6× 395 0.6× 484 0.8× 129 1.3k
Jean‐Paul Penot France 28 916 0.5× 2.3k 2.2× 1.2k 1.5× 554 0.8× 886 1.5× 144 2.7k
Lars‐Erik Persson Sweden 26 2.7k 1.4× 519 0.5× 180 0.2× 772 1.1× 365 0.6× 216 3.3k
Th. M. Rassias Greece 14 779 0.4× 590 0.6× 503 0.6× 306 0.5× 417 0.7× 38 1.4k
Kazimierz Goebel Poland 8 672 0.3× 2.5k 2.4× 1.5k 1.8× 585 0.9× 1.9k 3.4× 19 3.0k
Yeol Je Cho South Korea 35 591 0.3× 3.0k 2.8× 2.1k 2.6× 356 0.5× 2.7k 4.7× 243 4.1k
Lech Górniewicz Poland 19 1.1k 0.6× 663 0.6× 329 0.4× 288 0.4× 728 1.3× 72 1.7k

Countries citing papers authored by G. Isac

Since Specialization
Citations

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

Fields of papers citing papers by G. Isac

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of G. Isac

This figure shows the co-authorship network connecting the top 25 collaborators of G. Isac. A scholar is included among the top collaborators of G. Isac 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 G. Isac. G. Isac 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.
Isac, G. & Jinlu Li. (2005). Exceptional family of elements and the solvability of complementarity problems in uniformly smooth and uniformly convex Banach spaces. Journal of Zhejiang University Science. 6(4). 289–295. 5 indexed citations
2.
Isac, G. & Jinlu Li. (2005). Exceptional family of elements and the solvability of complementarity problems in uniformly smooth and uniformly convex Banach spaces. Journal of Zhejiang University. Science A. 6(4). 289–295. 1 indexed citations
3.
Isac, G. & Jinlu Li. (2004). The convergence property of ishikawa iteration schemes in noncompact subsets of hilbert spaces and its applications to complementarity theory. Computers & Mathematics with Applications. 47(10-11). 1745–1751. 3 indexed citations
4.
Jiang, Zhu, G. Isac, & Dun Zhao. (2004). Pareto optimization in topological vector spaces. Journal of Mathematical Analysis and Applications. 301(1). 22–31. 3 indexed citations
5.
Isac, G. & S. Z. Németh. (2003). Scalar derivatives and scalar asymptotic derivatives. An Altman type fixed point theorem on convex cones and some applications. Journal of Mathematical Analysis and Applications. 290(2). 452–468. 12 indexed citations
6.
Isac, G. & M Cojocaru. (2002). VARIATIONAL INEQUALITIES, COMPLEMENTARITY PROBLEMS AND PSEUDO-MONOTONICITY. DYNAMICAL ASPECTS. 32(5). 371–7. 6 indexed citations
7.
Isac, G.. (2000). Topological Methods in Complementarity Theory (Nonconvex Optimization and Its Applications). Springer eBooks. 17 indexed citations
8.
Isac, G. & Yun-Bin Zhao. (2000). Exceptional Family of Elements and the Solvability of Variational Inequalities for Unbounded Sets in Infinite Dimensional Hilbert Spaces. Journal of Mathematical Analysis and Applications. 246(2). 544–556. 29 indexed citations
9.
Isac, G. & George Xianzhi Yuan. (1999). The dual form of Knaster-Kuratowski-Mazurkiewicz principle in hyperconvex metric spaces and some applications. 19. 17–33. 2 indexed citations
10.
Yu, Jing, George Xianzhi Yuan, & G. Isac. (1998). The stability of solutions for differential inclusions and differential equations in the sense of Baire category theory. Applied Mathematics Letters. 11(4). 51–56. 3 indexed citations
11.
Ben-El-Mechaiekh, Hichem & G. Isac. (1997). SOME GEOMERTIC SOLVABILITY THEOREMS IN TOPOLOGICAL VECTOR SPACES. Bulletin of the Korean Mathematical Society. 34(2). 273–285. 1 indexed citations
12.
Isac, G.. (1997). Ekeland's principle and nuclear cones: A geometrical aspect. Mathematical and Computer Modelling. 26(11). 111–116. 13 indexed citations
13.
Isac, G. & Lars‐Erik Persson. (1996). On an Inequality Related to the Isotonicity of the Projection Operator. Journal of Approximation Theory. 86(2). 129–143. 5 indexed citations
14.
Isac, G. & M. Seetharama Gowda. (1993). Operators of class $(S)^1_{+}$, Altman's condition and the complementarity problem. 40(1). 1–16. 23 indexed citations
15.
Isac, G. & Th. M. Rassias. (1993). On the Hyers-Ulam Stability of ψ-Additive Mappings. Journal of Approximation Theory. 72(2). 131–137. 127 indexed citations
16.
Isac, G.. (1993). Tihonov′s Regularization and the Complementarity Problem in Hilbert Spaces. Journal of Mathematical Analysis and Applications. 174(1). 53–66. 17 indexed citations
17.
Isac, G. & Michael M. Kostreva. (1991). Kneser's theorem and the multivalued generalized order complementarity problem. Applied Mathematics Letters. 4(6). 81–85. 5 indexed citations
18.
Isac, G., et al.. (1990). Every generating isotone projection cone is latticial and correct. Journal of Mathematical Analysis and Applications. 147(1). 53–62. 24 indexed citations
19.
Isac, G.. (1989). The numerical range theory and boundedness of solutions of the complementarity problem. Journal of Mathematical Analysis and Applications. 143(1). 235–251. 4 indexed citations
20.

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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