Citation Rankings
Highly Cited Researchers
Natural Sciences / Mathematical Sciences Highly Cited Researchers 34 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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
Discrete Mathematics
Network Analysis
Algorithms
Optimization
Bibliometrics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,414
4,675
0.254
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Discrete Mathematics and its Applications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,403
6,348
0.365
* Total Citation Counts Rankings
Ranking Based On Selection: 3
quantum transport
quantum many body systems
random matrix theory
quantum information
quantum chaos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,013
4,086
0.510
* Total Citation Counts Rankings
Ranking Based On Selection: 4
statistics
data mining
bibliometric analysis
subgroup discovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,882
5,920
0.860
* Total Citation Counts Rankings
Ranking Based On Selection: 5
social science data collection
survey methodology
web surveys
statistics
data analytics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,629
2,881
0.435
* Total Citation Counts Rankings
Ranking Based On Selection: 6
multivariate analysis
social network analysis
blockmodeling
measurement quality
scientific networks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,181
1,609
0.260
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Solid state theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,266
1,730
0.329
* Total Citation Counts Rankings
Ranking Based On Selection: 8
quantum physics
quantum optics
quantum optomechanics
foundations of physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,111
1,723
0.337
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Kompleksna analiza
teorija minimalnih ploskev
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,759
1,501
0.315
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Open quantum systems
Quantum integrability
transport and conservation laws
nonequilibrium quantum statistical physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,960
1,852
0.626
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Real Algebraic Geometry
Free Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,934
923
0.477
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Mathematical Physics
Spectral Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,726
769
0.446
* Total Citation Counts Rankings
Ranking Based On Selection: 13
mathematical optimization
semidefinite programming
high performance computing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,659
796
0.480
* Total Citation Counts Rankings
Ranking Based On Selection: 14
quantum entanglement
qubit manipulation
quantum dots
"0.7 anomaly"
Kondo effect
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,654
319
0.193
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,473
402
0.273
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Biomedical optics
Medical physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,226
638
0.520
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Statistics
Epidemiological Modelling
AI in Medicine imaging
PACS/DICOM
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,015
353
0.348
* Total Citation Counts Rankings
Ranking Based On Selection: 18
chaotic dynamics
quantum few body system
mathematical physics
data analysis
numerics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
893
518
0.580
* Total Citation Counts Rankings
Ranking Based On Selection: 19
numerical linear algebra
multiparameter eigenvalue problems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
859
375
0.437
* Total Citation Counts Rankings
Ranking Based On Selection: 20
operator theory
semigroups
evolution equations
PDEs on metric graphs
linear algebra
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
842
437
0.519
* Total Citation Counts Rankings
Ranking Based On Selection: 21
liquid crystals
numerical simulations
LC coupling with external fields
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
689
266
0.386
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Combinatorics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
474
246
0.519
* Total Citation Counts Rankings
Ranking Based On Selection: 23
mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
433
192
0.443
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Funkcionalna analiza
Teorija operatorjev
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
433
119
0.275
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Real algebraic geometry
Moment problems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
390
111
0.285
* Total Citation Counts Rankings
Rankings
46,554
24
13
Ranking Based On Selection: 1
Vladimir Batagelj
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,414
4,675
0.254
Discrete Mathematics
Network Analysis
Algorithms
Optimization
Bibliometrics
* Total Citation Counts Rankings
Rankings
50,261
32
17
Ranking Based On Selection: 2
Sandi Klavžar
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,403
6,348
0.365
Discrete Mathematics and its Applications
* Total Citation Counts Rankings
Rankings
129,259
91
50
Ranking Based On Selection: 3
Marko Znidaric
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,013
4,086
0.510
quantum transport
quantum many body systems
random matrix theory
quantum information
quantum chaos
* Total Citation Counts Rankings
Rankings
152,178
107
58
Ranking Based On Selection: 4
Lan Umek
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,882
5,920
0.860
statistics
data mining
bibliometric analysis
subgroup discovery
* Total Citation Counts Rankings
Rankings
158,184
117
62
Ranking Based On Selection: 5
Katja Lozar Manfreda|Katja L. Manfreda, KL Manfreda, K Manfreda
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,629
2,881
0.435
social science data collection
survey methodology
web surveys
statistics
data analytics
* Total Citation Counts Rankings
Rankings
169,916
137
70
Ranking Based On Selection: 6
Anuska Ferligoj
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,181
1,609
0.260
multivariate analysis
social network analysis
blockmodeling
measurement quality
scientific networks
* Total Citation Counts Rankings
Rankings
199,053
160
84
Ranking Based On Selection: 7
Janez Bonca
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,266
1,730
0.329
* Total Citation Counts Rankings
Rankings
204,916
167
89
Ranking Based On Selection: 8
Rainer Kaltenbaek
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,111
1,723
0.337
quantum physics
quantum optics
quantum optomechanics
foundations of physics
* Total Citation Counts Rankings
Rankings
219,450
195
107
Ranking Based On Selection: 9
Franc Forstnerič
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,759
1,501
0.315
Kompleksna analiza
teorija minimalnih ploskev
* Total Citation Counts Rankings
Rankings
332,817
320
165
Ranking Based On Selection: 10
Enej Ilievski
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,960
1,852
0.626
Open quantum systems
Quantum integrability
transport and conservation laws
nonequilibrium quantum statistical physics
* Total Citation Counts Rankings
Rankings
459,613
457
225
Ranking Based On Selection: 11
İgor Klep
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,934
923
0.477
Real Algebraic Geometry
Free Analysis
* Total Citation Counts Rankings
Rankings
497,025
496
241
Ranking Based On Selection: 12
Aleksey Kostenko
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,726
769
0.446
Mathematical Physics
Spectral Theory
* Total Citation Counts Rankings
Rankings
510,382
511
251
Ranking Based On Selection: 13
Janez Povh
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,659
796
0.480
mathematical optimization
semidefinite programming
high performance computing
* Total Citation Counts Rankings
Rankings
511,484
512
252
Ranking Based On Selection: 14
Anton Ramsak
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,654
319
0.193
quantum entanglement
qubit manipulation
quantum dots
"0.7 anomaly"
Kondo effect
* Total Citation Counts Rankings
Rankings
550,824
563
275
Ranking Based On Selection: 15
Janez Mrcun
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,473
402
0.273
* Total Citation Counts Rankings
Rankings
614,939
637
318
Ranking Based On Selection: 16
Matija Milanic
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,226
638
0.520
Biomedical optics
Medical physics
* Total Citation Counts Rankings
Rankings
683,012
714
359
Ranking Based On Selection: 17
Janez Zibert
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,015
353
0.348
Statistics
Epidemiological Modelling
AI in Medicine imaging
PACS/DICOM
* Total Citation Counts Rankings
Rankings
728,910
758
376
Ranking Based On Selection: 18
Martin Horvat
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
893
518
0.580
chaotic dynamics
quantum few body system
mathematical physics
data analysis
numerics
* Total Citation Counts Rankings
Rankings
742,898
772
383
Ranking Based On Selection: 19
Bor Plestenjak
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
859
375
0.437
numerical linear algebra
multiparameter eigenvalue problems
* Total Citation Counts Rankings
Rankings
749,913
781
389
Ranking Based On Selection: 20
Marjeta Kramar Fijavž
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
842
437
0.519
operator theory
semigroups
evolution equations
PDEs on metric graphs
linear algebra
* Total Citation Counts Rankings
Rankings
819,505
856
418
Ranking Based On Selection: 21
David Sec
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
689
266
0.386
liquid crystals
numerical simulations
LC coupling with external fields
* Total Citation Counts Rankings
Rankings
953,946
1,033
489
Ranking Based On Selection: 22
Matjaz Konvalinka
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
474
246
0.519
* Total Citation Counts Rankings
Rankings
991,082
1,085
509
Ranking Based On Selection: 23
Polona Oblak
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
433
192
0.443
* Total Citation Counts Rankings
Rankings
991,211
1,086
510
Ranking Based On Selection: 24
Roman Drnovsek
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
433
119
0.275
Funkcionalna analiza
Teorija operatorjev
* Total Citation Counts Rankings
Rankings
1,033,809
1,136
528
Ranking Based On Selection: 25
Jaka Cimpric
University of Ljubljana
Ljubljana, Slovenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
390
111
0.285
Real algebraic geometry
Moment problems