World's Best Scientists 2026 revealed!
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Mathematics
UAE
2026

D-Index & Metrics

Mathematics

D-Index
38
Citations
4686
World Ranking
2393
National Ranking
4

Fathalla A. Rihan publication distribution in Mathematics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mathematics in 2026. The highlighted bar marks where Fathalla A. Rihan sits on this spectrum.

42–46 publications: 3 scientists 47–51 publications: 5 scientists 52–56 publications: 7 scientists 57–61 publications: 20 scientists 62–66 publications: 14 scientists 67–71 publications: 25 scientists 72–76 publications: 19 scientists 77–81 publications: 35 scientists 82–86 publications: 50 scientists 87–91 publications: 60 scientists 92–96 publications: 86 scientists 97–101 publications: 84 scientists 102–106 publications: 83 scientists 107–111 publications: 90 scientists 112–116 publications: 99 scientists 117–121 publications: 90 scientists 122–126 publications: 91 scientists 127–131 publications: 109 scientists 132–136 publications: 110 scientists 137–141 publications: 98 scientists 142–146 publications: 112 scientists 147–151 publications: 102 scientists 152–156 publications: 88 scientists 157–161 publications: 106 scientists 162–166 publications: 83 scientists 167–171 publications: 102 scientists 172–176 publications: 77 scientists 177–181 publications: 81 scientists 182–186 publications: 78 scientists 187–191 publications: 71 scientists 192–196 publications: 92 scientists 197–201 publications: 64 scientists 202–206 publications: 69 scientists 207–211 publications: 64 scientists 212–216 publications: 62 scientists 217–221 publications: 58 scientists 222–226 publications: 53 scientists 227–231 publications: 50 scientists 232–236 publications: 46 scientists 237–241 publications: 46 scientists 242–246 publications: 46 scientists 247–251 publications: 43 scientists 252–256 publications: 29 scientists 257–261 publications: 45 scientists 262–266 publications: 30 scientists 267–271 publications: 33 scientists 272–276 publications: 34 scientists 277–281 publications: 30 scientists 282–286 publications: 31 scientists 287–291 publications: 21 scientists 292–296 publications: 34 scientists 297–301 publications: 26 scientists 302–306 publications: 10 scientists 307–311 publications: 17 scientists 312–316 publications: 23 scientists 317–321 publications: 13 scientists 322–326 publications: 16 scientists 327–331 publications: 26 scientists 332–336 publications: 13 scientists 337–341 publications: 13 scientists 342–346 publications: 16 scientists 347–351 publications: 17 scientists 352–356 publications: 12 scientists 357–361 publications: 18 scientists 362–366 publications: 18 scientists 367–371 publications: 9 scientists 372–376 publications: 11 scientists 377–381 publications: 8 scientists 382–386 publications: 8 scientists 387–391 publications: 9 scientists 392–396 publications: 9 scientists 397–401 publications: 8 scientists 402–406 publications: 11 scientists 407–411 publications: 6 scientists 412–416 publications: 6 scientists 417–421 publications: 9 scientists 422–426 publications: 8 scientists 427–431 publications: 5 scientists 432–436 publications: 8 scientists 437–441 publications: 8 scientists 442–446 publications: 4 scientists 447–451 publications: 4 scientists 452–456 publications: 4 scientists 457–461 publications: 2 scientists 462–466 publications: 2 scientists 467–471 publications: 4 scientists 472–476 publications: 3 scientists 477–481 publications: 3 scientists 482–486 publications: 6 scientists 487–491 publications: 3 scientists 492–496 publications: 5 scientists 497–501 publications: 5 scientists 502–506 publications: 1 scientists 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientists 522–526 publications: 3 scientists 527–531 publications: 1 scientists 532–536 publications: 4 scientists 537+ publications: 100 scientists
42 publications 537+

This scientist: 169 publications — 48th percentile

48% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 537 publications or more.

Fathalla A. Rihan D-index placement in Mathematics in 2026

The chart shows the D-index (discipline H-index) distribution of Mathematics scientists ranked by Research.com in 2026. The highlighted bar marks where Fathalla A. Rihan sits on this spectrum.

30 D-Index: 174 scientists 31 D-Index: 151 scientists 32 D-Index: 174 scientists 33 D-Index: 117 scientists 34 D-Index: 136 scientists 35 D-Index: 127 scientists 36 D-Index: 145 scientists 37 D-Index: 153 scientists 38 D-Index: 150 scientists 39 D-Index: 150 scientists 40 D-Index: 138 scientists 41 D-Index: 136 scientists 42 D-Index: 93 scientists 43 D-Index: 108 scientists 44 D-Index: 115 scientists 45 D-Index: 112 scientists 46 D-Index: 103 scientists 47 D-Index: 75 scientists 48 D-Index: 59 scientists 49 D-Index: 67 scientists 50 D-Index: 60 scientists 51 D-Index: 57 scientists 52 D-Index: 59 scientists 53 D-Index: 62 scientists 54 D-Index: 60 scientists 55 D-Index: 50 scientists 56 D-Index: 42 scientists 57 D-Index: 54 scientists 58 D-Index: 50 scientists 59 D-Index: 42 scientists 60 D-Index: 41 scientists 61 D-Index: 35 scientists 62 D-Index: 40 scientists 63 D-Index: 21 scientists 64 D-Index: 31 scientists 65 D-Index: 27 scientists 66 D-Index: 29 scientists 67 D-Index: 19 scientists 68 D-Index: 25 scientists 69 D-Index: 17 scientists 70 D-Index: 18 scientists 71 D-Index: 12 scientists 72 D-Index: 14 scientists 73 D-Index: 13 scientists 74 D-Index: 18 scientists 75 D-Index: 9 scientists 76 D-Index: 11 scientists 77 D-Index: 10 scientists 78 D-Index: 9 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 10 scientists 82 D-Index: 5 scientists 83 D-Index: 5 scientists 84 D-Index: 13 scientists 85 D-Index: 6 scientists 86+ D-Index: 99 scientists
30 D-Index 86+

This scientist: 38 D-Index — 37th percentile

37% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 86 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Mathematics in United Arab Emirates Leader Award

Overview

Fathalla A. Rihan is affiliated with the United Arab Emirates University in the United Arab Emirates. Their research spans across various aspects of mathematics and medicine, with a primary focus on modeling and simulation, public health, environmental and occupational health, numerical analysis, genetics, and computer networks and communications.

The scientist's work extensively covers topics related to mathematical and theoretical epidemiology and ecology models, COVID-19 epidemiological studies, fractional differential equations solutions, mathematical biology with a focus on tumor growth, evolution and genetic dynamics, differential equations and numerical methods, as well as nonlinear dynamics and pattern formation.

Frequent co-authors in Rihan's research collaborations include Hebatallah J. Alsakaji, C. Rajivganthi, K. Udhayakumar, Isa Abdullahi Baba, and R. Rakkiyappan. Their research has appeared regularly in the following publication venues:

  • Chaos Solitons & Fractals
  • Complexity
  • Mathematical Biosciences & Engineering
  • Vaccines
  • The European Physical Journal Special Topics

Among recent papers authored or co-authored by Fathalla A. Rihan are:

  • Stochastic SIRC epidemic model with time-delay for COVID-19, 2020, Advances in Difference Equations
  • Mathematical model of COVID-19 with comorbidity and controlling using non-pharmaceutical interventions and vaccination, 2021, Nonlinear Dynamics
  • Dynamics of a stochastic delay differential model for COVID-19 infection with asymptomatic infected and interacting people: Case study in the UAE, 2021, Results in Physics
  • Dynamics of fractional-order delay differential model for tumor-immune system, 2020, Chaos Solitons & Fractals
  • Dynamics of fractional-order delay differential model of prey-predator system with Holling-type III and infection among predators, 2020, Chaos Solitons & Fractals

Fathalla A. Rihan is also an author of the book Delay Differential Equations and Applications to Biology, published in 2021 by Springer Nature.

Best Publications

  • Numerical modelling in biosciences using delay differential equations

    Gennadii A. Bocharov;Fathalla A. Rihan

  • Numerical Modeling of Fractional-Order Biological Systems

    Fathalla A. Rihan

  • Delay Differential Equations and Applications to Biology

    Fathalla A. Rihan

  • Fractional-order delayed predator–prey systems with Holling type-II functional response

    FA Rihan;Shanmugam Lakshmanan;AH Hashish;R Rakkiyappan

  • A fractional-order epidemic model with time-delay and nonlinear incidence rate

    F.A. Rihan;Q.M. Al-Mdallal;H.J. AlSakaji;A. Hashish

  • Modelling and analysis of time-lags in some basic patterns of cell proliferation

    C. T. H. Baker;G. A. Bocharov;C. A. H. Paul;F. A. Rihan

  • A time delay model of tumour–immune system interactions: Global dynamics, parameter estimation, sensitivity analysis

    Fathalla A. Rihan;D. H. Abdel Rahman;Shanmugam Lakshmanan;A. S. Alkhajeh

  • Stochastic SIRC epidemic model with time-delay for COVID-19.

    F. A. Rihan;H. J. Alsakaji;C. Rajivganthi

  • Sensitivity analysis for dynamic systems with time-lags

    Fathalla A. Rihan

  • On Fractional SIRC Model with Salmonella Bacterial Infection

    Fathalla A. Rihan;Fathalla A. Rihan;Dumitru Baleanu;Dumitru Baleanu;S. Lakshmanan;R. Rakkiyappan

  • Stability of fractional-order prey–predator system with time-delay and Monod–Haldane functional response

    Rajivganthi Chinnathambi;Fathalla A. Rihan

  • Mathematical model of COVID-19 with comorbidity and controlling using non-pharmaceutical interventions and vaccination.

    Parthasakha Das;Ranjit Kumar Upadhyay;Arvind Kumar Misra;Fathalla A. Rihan

  • Computational methods for delay parabolic and time‐fractional partial differential equations

    Fathalla A. Rihan;Fathalla A. Rihan

  • Dynamics of a stochastic delay differential model for COVID-19 infection with asymptomatic infected and interacting people: Case study in the UAE

    F.A. Rihan;H.J. Alsakaji

  • Optimal control of tumour-immune model with time-delay and immuno-chemotherapy

    Fathalla A. Rihan;Shanmugam Lakshmanan;H. Maurer

  • Delay-dependent H∞ state estimation of neural networks with mixed time-varying delays

    S. Lakshmanan;S. Lakshmanan;K. Mathiyalagan;Ju H. Park;R. Sakthivel

  • Stability analysis of the differential genetic regulatory networks model with time-varying delays and Markovian jumping parameters

    Shanmugam Lakshmanan;Fathalla A. Rihan;R. Rakkiyappan;Ju H. Park

  • Dynamics of fractional-order delay differential model for tumor-immune system

    F.A. Rihan;G. Velmurugan

  • Finite-time stability analysis for fractional-order Cohen–Grossberg BAM neural networks with time delays

    C. Rajivganthi;F. A. Rihan;S. Lakshmanan;P. Muthukumar

  • Delay Differential Model for Tumour-Immune Response with Chemoimmunotherapy and Optimal Control

    F. A. Rihan;D. H. Abdelrahman;F. Al-Maskari;F. Ibrahim

  • Exponential synchronization of Markovian jumping neural networks with partly unknown transition probabilities via stochastic sampled-data control

    A. Chandrasekar;R. Rakkiyappan;Fathalla A. Rihan;S. Lakshmanan

Frequent Co-Authors

Rajan Rakkiyappan
Rajan Rakkiyappan Bharathiar University
Ju H. Park
Ju H. Park Yeungnam University
Jinde Cao
Jinde Cao Southeast University
Stefan Turek
Stefan Turek TU Dortmund University
Eid H. Doha
Eid H. Doha Cairo University
Dibakar Ghosh
Dibakar Ghosh Indian Statistical Institute
Dumitru Baleanu
Dumitru Baleanu Lebanese American University
Pagavathigounder Balasubramaniam
Pagavathigounder Balasubramaniam Gandhigram Rural Institute
Kalidass Mathiyalagan
Kalidass Mathiyalagan Bharathiar University
Xiaodi Li
Xiaodi Li Shandong Normal University

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