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Karthikeyan Rajagopal

Karthikeyan Rajagopal

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Engineering and Technology 50 4056 3893 62 62 457 10254

Karthikeyan Rajagopal publications per year

The chart shows the history of publications by Karthikeyan Rajagopal between 1981 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Karthikeyan Rajagopal published across 45 years, from 1981 to 2025, averaging 12.7 papers a year. Output peaked at 91 publications in 2023. 74 of the 573 publications appeared in the last two years.

No. of publications
20 40 60 80
Bar chart. Horizontal axis: year, 1981 to 2025. Vertical axis: number of publications, 0 to 91. Peak 91 publications in 2023. 1981: 1 publication 1982: 0 publications 1983: 2 publications 1984: 4 publications 1985: 1 publication 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 1 publication 1994: 0 publications 1995: 1 publication 1996: 0 publications 1997: 2 publications 1998: 3 publications 1999: 0 publications 2000: 0 publications 2001: 2 publications 2002: 4 publications 2003: 9 publications 2004: 4 publications 2005: 14 publications 2006: 14 publications 2007: 4 publications 2008: 0 publications 2009: 3 publications 2010: 11 publications 2011: 8 publications 2012: 7 publications 2013: 6 publications 2014: 2 publications 2015: 5 publications 2016: 12 publications 2017: 19 publications 2018: 51 publications 2019: 37 publications 2020: 36 publications 2021: 68 publications 2022: 77 publications 2023: 91 publications 2024: 53 publications 2025: 21 publications
1981 2025

573 publications in total across all disciplines

View publications per year as a table
Karthikeyan Rajagopal: publications per year, 1981 to 2025
Year Publications
1981 1
1982 0
1983 2
1984 4
1985 1
1986 0
1987 0
1988 0
1989 0
1990 0
1991 0
1992 0
1993 1
1994 0
1995 1
1996 0
1997 2
1998 3
1999 0
2000 0
2001 2
2002 4
2003 9
2004 4
2005 14
2006 14
2007 4
2008 0
2009 3
2010 11
2011 8
2012 7
2013 6
2014 2
2015 5
2016 12
2017 19
2018 51
2019 37
2020 36
2021 68
2022 77
2023 91
2024 53
2025 21
Total 573
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Karthikeyan Rajagopal publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Karthikeyan Rajagopal sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: publications, 38–47 to 804+. Vertical axis: number of scientists, 0 to 457. Most scientists, 457, have 148–157 publications. The last bar groups every scientist with 804 publications or more. The highlighted bar, 448–457 publications, is where this scientist sits. 38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38–47 publications 804+

This scientist: 457 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

View publications distribution as a table
Number of Engineering and Technology scientists by publication count, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
Publications Scientists This scientist
38–47 20
48–57 35
58–67 96
68–77 135
78–87 190
88–97 259
98–107 283
108–117 369
118–127 341
128–137 386
138–147 372
148–157 457
158–167 415
168–177 407
178–187 421
188–197 378
198–207 403
208–217 317
218–227 346
228–237 321
238–247 260
248–257 280
258–267 240
268–277 214
278–287 242
288–297 203
298–307 166
308–317 154
318–327 175
328–337 159
338–347 99
348–357 131
358–367 106
368–377 118
378–387 97
388–397 108
398–407 82
408–417 71
418–427 64
428–437 55
438–447 54
448–457 60 457
458–467 47
468–477 40
478–487 30
488–497 29
498–507 38
508–517 40
518–527 32
528–537 23
538–547 28
548–557 23
558–567 19
568–577 16
578–587 17
588–597 18
598–607 22
608–617 15
618–627 9
628–637 11
638–647 21
648–657 12
658–667 9
668–677 11
678–687 9
688–697 6
698–707 14
708–717 7
718–727 8
728–737 10
738–747 9
748–757 5
758–767 5
768–777 11
778–787 7
788–797 2
798–803 4
804+ 100
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Karthikeyan Rajagopal D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Karthikeyan Rajagopal sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: D-Index, 30 to 107+. Vertical axis: number of scientists, 0 to 426. Most scientists, 426, have 42 D-Index. The last bar groups every scientist with 107 D-Index or more. The highlighted bar, 50 D-Index, is where this scientist sits. 30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 50 D-Index — 59th percentile

59% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

View D-Index distribution as a table
Number of Engineering and Technology scientists by D-index, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
D-Index Scientists This scientist
30 59
31 114
32 129
33 189
34 200
35 262
36 311
37 312
38 350
39 385
40 348
41 362
42 426
43 380
44 310
45 341
46 301
47 306
48 271
49 246
50 210 50
51 253
52 213
53 221
54 195
55 186
56 170
57 167
58 166
59 144
60 152
61 141
62 138
63 131
64 118
65 114
66 119
67 95
68 87
69 77
70 89
71 69
72 54
73 46
74 55
75 54
76 49
77 53
78 46
79 28
80 39
81 36
82 24
83 26
84 36
85 18
86 25
87 19
88 26
89 27
90 23
91 15
92 12
93 9
94 15
95 10
96 13
97 13
98 9
99 7
100 7
101 8
102 7
103 7
104 9
105 6
106 9
107+ 99
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Overview

Karthikeyan Rajagopal is affiliated with the Chennai Institute of Technology in India. Their research spans the fields of Physics and Astronomy as well as Computer Science, with significant contributions in several specialized subfields.

The primary subfields where they have produced work include Statistical and Nonlinear Physics, Computer Networks and Communications, Cognitive Neuroscience, Electrical and Electronic Engineering, and Computer Vision and Pattern Recognition.

Their main research topics cover Nonlinear Dynamics and Pattern Formation, stochastic dynamics and bifurcation, Chaos control and synchronization, Neural dynamics and brain function, Quantum chaos and dynamical systems, Neural Networks Stability and Synchronization, and Chaos-based Image/Signal Encryption.

Karthikeyan Rajagopal has published frequently in the following venues:

  • The European Physical Journal Special Topics
  • International Journal of Bifurcation and Chaos
  • Physica Scripta
  • Complexity
  • Chaos Solitons & Fractals

Among recent publications associated with or relevant to their research are:

  • "A fractional-order model for the novel coronavirus (COVID-19) outbreak" (2020) in Nonlinear Dynamics
  • "Synchronization in Hindmarsh-Rose neurons subject to higher-order interactions" (2022) in Chaos An Interdisciplinary Journal of Nonlinear Science
  • "Firefly algorithm based WSN-IoT security enhancement with machine learning for intrusion detection" (2024) in Scientific Reports
  • "Multistable dynamics and control of a new 4D memristive chaotic Sprott B system" (2022) in Chaos Solitons & Fractals
  • "A simple fractional-order chaotic system based on memristor and memcapacitor and its synchronization application" (2021) in Chaos Solitons & Fractals

Frequent co-authors collaborating with them include Sajad Jafari, Anitha Karthikeyan, Balamurali Ramakrishnan, Hayder Natiq, and Fatemeh Parastesh. These collaborations have contributed to a broad spectrum of studies across nonlinear systems, neural dynamics, and communication networks.

Best Publications

  • PM Synchronous Motor Speed Control Using Hybrid Fuzzy-PI With Novel Switching Functions

    A.V. Sant;K.R. Rajagopal

  • A multimode 76-to-81GHz automotive radar transceiver with autonomous monitoring

    Brian P. Ginsburg;Karthik Subburaj;Sreekiran Samala;Karthik Ramasubramanian

  • A fractional-order model for the novel coronavirus (COVID-19) outbreak.

    Karthikeyan Rajagopal;Navid Hasanzadeh;Fatemeh Parastesh;Ibrahim Ismael Hamarash;Ibrahim Ismael Hamarash

  • Design and SPICE implementation of a 12-term novel hyperchaotic system and its synchronisation via active control

    Sundarapandian Vaidyanathan;Ahmad Taher Azar;Karthikeyan Rajagopal;Prasina Alexander

  • GLOBAL CHAOS SYNCHRONIZATION OF HYPERCHAOTIC PANG AND HYPERCHAOTIC WANG SYSTEMS VIA ADAPTIVE CONTROL

    Sundarapandian Vaidyanathan;Karthikeyan Rajagopal

  • FPGA implementation of novel fractional-order chaotic systems with two equilibriums and no equilibrium and its adaptive sliding mode synchronization

    Karthikeyan Rajagopal;Anitha Karthikeyan;Ashok Kumar Srinivasan

  • Optimum pole arcs for a switched reluctance motor for higher torque with reduced ripple

    N.K. Sheth;K.R. Rajagopal

  • Analysis, Adaptive Control and Synchronization of a Seven - Term Novel 3 - D Chaotic System with Three Quadratic Nonlinearities and its Digital Implementation in LabVIEW

    S. Vaidyanathan;K. Rajagopal

  • Dynamical analysis of a new multistable chaotic system with hidden attractor: Antimonotonicity, coexisting multiple attractors, and offset boosting

    Atiyeh Bayani;Karthikeyan Rajagopal;Abdul Jalil M. Khalaf;Sajad Jafari

  • Hybrid Synchronization of Hyperchaotic Wang-Chen and Hyperchaotic Lorenz Systems by Active Non-linear Control

    Sundarapandian Vaidyanathan;Karthikeyan Rajagopal

  • Adaptive Backstepping Controller Design for the Anti - Synchronization of Identical WINDMI Chaotic Systems with Unknown Parameters and its SPICE Implementation

    S. Vaidyanathan;Ch. K. Volos

  • Complete analysis and engineering applications of a megastable nonlinear oscillator

    Hadi Jahanshahi;Karthikeyan Rajagopal;Akif Akgul;Naeimeh Najafizadeh Sari

  • Anti-synchronization of Li and T Chaotic Systems by Active Nonlinear Control

    Sundarapandian Vaidyanathan;Karthikeyan Rajagopal

  • Chaotic chameleon: Dynamic analyses, circuit implementation, FPGA design and fractional-order form with basic analyses

    Karthikeyan Rajagopal;Akif Akgul;Sajad Jafari;Anitha Karthikeyan

  • Global Chaos Synchronization of Lü and Pan Systems by Adaptive Nonlinear Control

    Sundarapandian Vaidyanathan;Karthikeyan Rajagopal

  • A Novel Air-Gap Profile of Single-Phase Permanent-Magnet Brushless DC Motor for Starting Torque Improvement and Cogging Torque Reduction

    M Fazil;K R Rajagopal

  • Fractional Order Memristor No Equilibrium Chaotic System with Its Adaptive Sliding Mode Synchronization and Genetically Optimized Fractional Order PID Synchronization

    Karthikeyan Rajagopal;Laarem Guessas;Anitha Karthikeyan;Ashokkumar Srinivasan

  • A New Fractional-Order Chaotic System with Different Families of Hidden and Self-Excited Attractors.

    Jesús M. Muñoz-Pacheco;Ernesto Zambrano-Serrano;Christos K. Volos;Sajad Jafari

  • Hyperchaotic Chameleon: Fractional Order FPGA Implementation

    Karthikeyan Rajagopal;Anitha Karthikeyan;Prakash Duraisamy

  • Calculation of the flux-linkage characteristics of a switched reluctance motor by flux tube method

    N.K. Sheth;K.R. Rajagopal

  • Proper Orthogonal Decomposition Technique for Near-optimal Control of Flexible Aircraft Wings

    Manoj Kumar;Karthikeyan Rajagopal;S. N. Balakrishnan;Nhan T. Nguyen

  • A chaotic memcapacitor oscillator with two unstable equilibriums and its fractional form with engineering applications

    Karthikeyan Rajagopal;Akif Akgul;Sajad Jafari;Burak Aricioglu

Frequent Co-Authors

Sajad Jafari
Sajad Jafari Amirkabir University of Technology
Akif Akgul
Akif Akgul Hittite University
Bhim Singh
Bhim Singh Indian Institute of Technology Delhi
Tasawar Hayat
Tasawar Hayat Quaid-i-Azam University
Iqtadar Hussain
Iqtadar Hussain Qatar University
Sundarapandian Vaidyanathan
Sundarapandian Vaidyanathan Vel Tech University
S. N. Balakrishnan
S. N. Balakrishnan Missouri University of Science and Technology
Christos Volos
Christos Volos Aristotle University of Thessaloniki
Jacques Kengne
Jacques Kengne Université de Dschang
Fuad E. Alsaadi
Fuad E. Alsaadi King Abdulaziz University

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