The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Functional Analysis
Operator Theory
Linear Topological Invariants
Fixed Point Theory
Best
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,135
12,575
0.595
* Total Citation Counts Rankings
Ranking Based On Selection :2
Spectral Theory of Automorphic Functions
Spectral Geometry of Riemannian Mafolds
Linear and Nonlinear Functional Analysis
Direct and Inverse Spectral Problems for Differential and Difference Operators
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,077
1,125
0.276
* Total Citation Counts Rankings
Ranking Based On Selection :3
Orthogonal Polynomials
Applied Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
548
524
0.956
* Total Citation Counts Rankings
Ranking Based On Selection :4
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
534
312
0.584
* Total Citation Counts Rankings
Ranking Based On Selection :5
Differential Equations & Inequalities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
437
216
0.494
* Total Citation Counts Rankings
Ranking Based On Selection :6
Hesaplamali Bilim
Sayısal Analiz
Diferansiyel denklemlerin sayısal çözümü
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
98
0.424
* Total Citation Counts Rankings
Ranking Based On Selection :7
matematik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
37
0.725
* Total Citation Counts Rankings
Ranking Based On Selection :8
Functional Analysis
Positivity and Dilation Theory
Ordered *-Spaces with a Normal Cone
VH (Vector
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23
15
0.652
* Total Citation Counts Rankings
Ranking Based On Selection :9
Mathematical Modelling
Logistics Management
Supply Chain Management
Optimization
Heuristics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15
7
0.467
* Total Citation Counts Rankings
Ranking Based On Selection :10
Numeric Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8
8
1.000
Erdal Karapınar
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,135
12,575
0.595
Functional Analysis
Operator Theory
Linear Topological Invariants
Fixed Point Theory
Best
Gusein Sh Guseinov
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,077
1,125
0.276
Spectral Theory of Automorphic Functions
Spectral Geometry of Riemannian Mafolds
Linear and Nonlinear Functional Analysis
Direct and Inverse Spectral Problems for Differential and Difference Operators
Rezan Sevinik Adigüzel
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
548
524
0.956
Orthogonal Polynomials
Applied Mathematics
Fatma Yerlikaya Özkurt
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
534
312
0.584
Abdullah Ozbekler
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
437
216
0.494
Differential Equations & Inequalities
Ayhan Aydin
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
98
0.424
Hesaplamali Bilim
Sayısal Analiz
Diferansiyel denklemlerin sayısal çözümü
Burcu Gulmez Temur
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
37
0.725
Serdar Ay
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23
15
0.652
Functional Analysis
Positivity and Dilation Theory
Ordered *-Spaces with a Normal Cone
VH (Vector
Murat Toydas
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15
7
0.467
Mathematical Modelling
Logistics Management
Supply Chain Management
Optimization
Heuristics
Tanil Ergenç
Atılım University
Ankara, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8
8
1.000