Citation Rankings
Highly Cited Researchers
Institute of Mathematics and Informatics, Bulgarian Academy of Sciences 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
mathematical physics
soliton theory
soliton interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,654
1,454
0.312
* Total Citation Counts Rankings
Ranking Based On Selection :2
biomathematics
interval analysis
enzyme kinetics
mathematical modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,798
1,575
0.415
* Total Citation Counts Rankings
Ranking Based On Selection :3
Algebra
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,186
944
0.296
* Total Citation Counts Rankings
Ranking Based On Selection :4
Fractional Calculus
Operational Calculus
Mathematical Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,027
1,176
0.580
* Total Citation Counts Rankings
Ranking Based On Selection :5
Topology
Convex analysis
Optimization
Banach spaces
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,026
444
0.219
* Total Citation Counts Rankings
Ranking Based On Selection :6
Differential equations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,592
435
0.273
* Total Citation Counts Rankings
Ranking Based On Selection :7
differential and integral equations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,470
604
0.411
* Total Citation Counts Rankings
Ranking Based On Selection :8
interval arithmetic
linear systems
enclosure methods
mathematical software
modelling with uncertain data
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,463
365
0.249
* Total Citation Counts Rankings
Ranking Based On Selection :9
Computational mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,103
427
0.387
* Total Citation Counts Rankings
Ranking Based On Selection :10
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
853
281
0.329
* Total Citation Counts Rankings
Ranking Based On Selection :11
Several complex variables
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
831
415
0.499
* Total Citation Counts Rankings
Ranking Based On Selection :12
Probability theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
809
434
0.536
* Total Citation Counts Rankings
Ranking Based On Selection :13
Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
755
356
0.472
* Total Citation Counts Rankings
Ranking Based On Selection :14
mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
744
255
0.343
* Total Citation Counts Rankings
Ranking Based On Selection :15
Informatics
Ethnology
History
Folklore
Statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
554
271
0.489
* Total Citation Counts Rankings
Ranking Based On Selection :16
Differential geometry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
485
200
0.412
* Total Citation Counts Rankings
Ranking Based On Selection :17
Mathematical Logic
Theory of Computation
Computational Linguistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
466
199
0.427
* Total Citation Counts Rankings
Ranking Based On Selection :18
coding theory
algorithms
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
420
119
0.283
* Total Citation Counts Rankings
Ranking Based On Selection :19
integrable systems
mathematical physics
differential geometry
symmetry analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
391
128
0.327
* Total Citation Counts Rankings
Ranking Based On Selection :20
mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
261
39
0.149
* Total Citation Counts Rankings
Rankings
218,687
84
3
Ranking Based On Selection: 1
Vladimir Gerdjikov, Vladimir Gerdzhikov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,654
1,454
0.312
mathematical physics
soliton theory
soliton interactions
* Total Citation Counts Rankings
Rankings
263,416
111
4
Ranking Based On Selection: 2
Svetoslav Markov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,798
1,575
0.415
biomathematics
interval analysis
enzyme kinetics
mathematical modelling
* Total Citation Counts Rankings
Rankings
306,173
141
6
Ranking Based On Selection: 3
Vesselin Drensky
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,186
944
0.296
* Total Citation Counts Rankings
Rankings
435,424
248
8
Ranking Based On Selection: 4
Emilia Bazhlekova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,027
1,176
0.580
Fractional Calculus
Operational Calculus
Mathematical Physics
* Total Citation Counts Rankings
Rankings
435,637
249
9
Ranking Based On Selection: 5
Petar Kenderov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,026
444
0.219
Topology
Convex analysis
Optimization
Banach spaces
* Total Citation Counts Rankings
Rankings
514,365
329
10
Ranking Based On Selection: 6
Iliya D. Iliev
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,592
435
0.273
* Total Citation Counts Rankings
Rankings
541,271
358
11
Ranking Based On Selection: 7
Tsviatko Rangelov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,470
604
0.411
differential and integral equations
* Total Citation Counts Rankings
Rankings
542,904
360
12
Ranking Based On Selection: 8
Popova ED
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,463
365
0.249
interval arithmetic
linear systems
enclosure methods
mathematical software
modelling with uncertain data
* Total Citation Counts Rankings
Rankings
642,480
483
15
Ranking Based On Selection: 9
Ivan Bazhlekov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,103
427
0.387
* Total Citation Counts Rankings
Rankings
735,215
606
23
Ranking Based On Selection: 10
Todorka Alexandrova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
853
281
0.329
* Total Citation Counts Rankings
Rankings
744,454
622
24
Ranking Based On Selection: 11
Nikolai Nikolov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
831
415
0.499
* Total Citation Counts Rankings
Rankings
754,107
637
25
Ranking Based On Selection: 12
Mladen Savov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
809
434
0.536
* Total Citation Counts Rankings
Rankings
778,180
676
26
Ranking Based On Selection: 13
Peter Boyvalenkov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
755
356
0.472
* Total Citation Counts Rankings
Rankings
783,419
687
28
Ranking Based On Selection: 14
Mushkarov, Oleg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
744
255
0.343
* Total Citation Counts Rankings
Rankings
881,095
849
34
Ranking Based On Selection: 15
Detelin Luchev
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
554
271
0.489
Informatics
Ethnology
History
Folklore
Statistics
* Total Citation Counts Rankings
Rankings
928,416
935
35
Ranking Based On Selection: 16
Velichka Milousheva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
485
200
0.412
* Total Citation Counts Rankings
Rankings
944,673
977
36
Ranking Based On Selection: 17
Roussanka Loukanova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
466
199
0.427
Mathematical Logic
Theory of Computation
Computational Linguistics
* Total Citation Counts Rankings
Rankings
986,367
1,088
37
Ranking Based On Selection: 18
Tsonka Baicheva|Tsonka Baitcheva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
420
119
0.283
* Total Citation Counts Rankings
Rankings
1,015,145
1,155
39
Ranking Based On Selection: 19
Tihomir Valchev
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
391
128
0.327
integrable systems
mathematical physics
differential geometry
symmetry analysis
* Total Citation Counts Rankings
Rankings
1,178,235
1,607
41
Ranking Based On Selection: 20
Nv Zhivkov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
261
39
0.149