Citation Rankings
Highly Cited Researchers
University Babes Bolyai Highly Cited Researchers CitationNatural Sciences / Mathematical Sciences Rankings 2025
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
Molecular topology
counting polynomials
topological indices
polyhedral cages
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,735
1,625
0.186
* Total Citation Counts Rankings
Ranking Based On Selection :2
Nonlinear analysis
Differential Equations
Fixed Point Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,714
2,814
0.365
* Total Citation Counts Rankings
Ranking Based On Selection :3
Mathematics
Analysis
Academy of Romanian Scientists
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,219
2,848
0.458
* Total Citation Counts Rankings
Ranking Based On Selection :4
Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,047
1,087
0.215
* Total Citation Counts Rankings
Ranking Based On Selection :5
Complex Analysis
Geometric Function Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,370
1,197
0.355
* Total Citation Counts Rankings
Ranking Based On Selection :6
Nonlinear Functional Analysis
Ordinary Differential Equations
Partial Differential Equations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,858
1,213
0.424
* Total Citation Counts Rankings
Ranking Based On Selection :7
Nonlinear Analysis
Optimization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,539
869
0.342
* Total Citation Counts Rankings
Ranking Based On Selection :8
Complex Analysis
Geometric Function Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,463
1,378
0.559
* Total Citation Counts Rankings
Ranking Based On Selection :9
Riemannian and Finsler geometry
Calculus of variations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,314
875
0.378
* Total Citation Counts Rankings
Ranking Based On Selection :10
Calculus of Variations
Critical Points Theory
PDE's
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,804
607
0.336
* Total Citation Counts Rankings
Ranking Based On Selection :11
Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
825
0.463
* Total Citation Counts Rankings
Ranking Based On Selection :12
Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,626
817
0.502
* Total Citation Counts Rankings
Ranking Based On Selection :13
Fluid Mechanics
Potential Theory
Complex Analysis
Partial Differential Equations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,587
625
0.394
* Total Citation Counts Rankings
Ranking Based On Selection :14
Applied Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,450
965
0.666
* Total Citation Counts Rankings
Ranking Based On Selection :15
Applied Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,343
933
0.695
* Total Citation Counts Rankings
Ranking Based On Selection :16
Approximation Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,248
380
0.304
* Total Citation Counts Rankings
Ranking Based On Selection :17
Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,184
445
0.376
* Total Citation Counts Rankings
Ranking Based On Selection :18
probabilitati
analiza stocastica
analiza numerica
ecuatii cu derivate partiale
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
878
361
0.411
* Total Citation Counts Rankings
Ranking Based On Selection :19
Mathematics
Algebra
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
782
399
0.510
* Total Citation Counts Rankings
Ranking Based On Selection :20
Mathematical Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
752
495
0.658
* Total Citation Counts Rankings
Ranking Based On Selection :21
operator theory
ordinary differential equations
integral equations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
692
299
0.432
* Total Citation Counts Rankings
Ranking Based On Selection :22
Mathematical Analysis
Approximation Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
654
206
0.315
* Total Citation Counts Rankings
Ranking Based On Selection :23
Numerical methods
Integral equations
Differential equations
Fixed point theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
624
376
0.603
* Total Citation Counts Rankings
Ranking Based On Selection :24
Fixed Point Theory
Maximum principles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
537
338
0.629
* Total Citation Counts Rankings
Ranking Based On Selection :25
fixed point theory
special functions
teaching of mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
508
230
0.453
* Total Citation Counts Rankings
Rankings
114,900
87
5
Ranking Based On Selection: 1
Mircea Diudea
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,735
1,625
0.186
Molecular topology
counting polynomials
topological indices
polyhedral cages
* Total Citation Counts Rankings
Rankings
131,899
96
8
Ranking Based On Selection: 2
Ioan A. Rus
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,714
2,814
0.365
Nonlinear analysis
Differential Equations
Fixed Point Theory
* Total Citation Counts Rankings
Rankings
165,409
125
14
Ranking Based On Selection: 3
Adrian Petrusel
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,219
2,848
0.458
Mathematics
Analysis
Academy of Romanian Scientists
* Total Citation Counts Rankings
Rankings
203,029
181
27
Ranking Based On Selection: 4
József Sándor
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,047
1,087
0.215
* Total Citation Counts Rankings
Rankings
292,905
312
41
Ranking Based On Selection: 5
Gabriela Kohr
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,370
1,197
0.355
Complex Analysis
Geometric Function Theory
* Total Citation Counts Rankings
Rankings
335,736
382
51
Ranking Based On Selection: 6
Radu Precup
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,858
1,213
0.424
Nonlinear Functional Analysis
Ordinary Differential Equations
Partial Differential Equations
* Total Citation Counts Rankings
Rankings
368,969
442
60
Ranking Based On Selection: 7
Gábor Kassay
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,539
869
0.342
Nonlinear Analysis
Optimization
* Total Citation Counts Rankings
Rankings
377,607
462
63
Ranking Based On Selection: 8
Teodor Bulboaca
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,463
1,378
0.559
Complex Analysis
Geometric Function Theory
* Total Citation Counts Rankings
Rankings
396,044
509
72
Ranking Based On Selection: 9
Kristály Alexandru
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,314
875
0.378
Riemannian and Finsler geometry
Calculus of variations
* Total Citation Counts Rankings
Rankings
473,661
689
98
Ranking Based On Selection: 10
Csaba Varga
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,804
607
0.336
Calculus of Variations
Critical Points Theory
PDE's
* Total Citation Counts Rankings
Rankings
477,968
704
100
Ranking Based On Selection: 11
Dorin Andrica
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
825
0.463
* Total Citation Counts Rankings
Rankings
508,200
789
113
Ranking Based On Selection: 12
Gabriela Petrusel
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,626
817
0.502
* Total Citation Counts Rankings
Rankings
516,561
815
116
Ranking Based On Selection: 13
Mirela Kohr
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,587
625
0.394
Fluid Mechanics
Potential Theory
Complex Analysis
Partial Differential Equations
* Total Citation Counts Rankings
Rankings
546,935
890
124
Ranking Based On Selection: 14
Alin Roșca
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,450
965
0.666
* Total Citation Counts Rankings
Rankings
573,439
951
132
Ranking Based On Selection: 15
Natalia Roșca
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,343
933
0.695
* Total Citation Counts Rankings
Rankings
599,193
1,016
138
Ranking Based On Selection: 16
Octavian Agratini
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,248
380
0.304
* Total Citation Counts Rankings
Rankings
617,952
1,075
142
Ranking Based On Selection: 17
Adriana Buica
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,184
445
0.376
* Total Citation Counts Rankings
Rankings
725,364
1,492
200
Ranking Based On Selection: 18
Hannelore Lisei
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
878
361
0.411
probabilitati
analiza stocastica
analiza numerica
ecuatii cu derivate partiale
* Total Citation Counts Rankings
Rankings
766,356
1,658
223
Ranking Based On Selection: 19
Simion Breaz
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
782
399
0.510
* Total Citation Counts Rankings
Rankings
779,850
1,711
229
Ranking Based On Selection: 20
Adriana Nicolae
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
752
495
0.658
* Total Citation Counts Rankings
Rankings
808,524
1,870
239
Ranking Based On Selection: 21
Marcel-Adrian Serban
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
692
299
0.432
operator theory
ordinary differential equations
integral equations
* Total Citation Counts Rankings
Rankings
827,603
1,961
248
Ranking Based On Selection: 22
Zoltán Finta
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
654
206
0.315
Mathematical Analysis
Approximation Theory
* Total Citation Counts Rankings
Rankings
843,041
2,059
261
Ranking Based On Selection: 23
Sanda Micula
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
624
376
0.603
Numerical methods
Integral equations
Differential equations
Fixed point theory
* Total Citation Counts Rankings
Rankings
891,364
2,379
298
Ranking Based On Selection: 24
Ioan Cristian Chifu
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
537
338
0.629
Fixed Point Theory
Maximum principles
* Total Citation Counts Rankings
Rankings
911,731
2,531
309
Ranking Based On Selection: 25
Szilárd András
University Babes Bolyai
Cluj-Napoca, Romania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
508
230
0.453
fixed point theory
special functions
teaching of mathematics