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Ousmane SEYDI

Home > Annuaire > Ousmane SEYDI
Pr. Ousmane SEYDI

Professeur assimilé

 

  • oseydi@ept.sn
  • +221 76 885 22 66
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About Me

  • Professor in Applied Mathematics at Ecole Polytechnique de Thiès since October 2014
  • Head of the Department of Research and Innovation of École Polytechnique de Thiès (2021-2024)
  • Coordinator of a JEAI (Jeune Equipe Associé à l’IRD) Project DYNAMisM with IRD’s Correspondent Ramsès DjiDjou-Demasse. The Project runs from January 2022 to December 2024.

Areas of interest: Differential equations, Epidemiology and Ecology modelling, Population dynamics, Singular perturbations theory, Invariant manifolds theory.

Publications
Supervision
Opportunity
Teaching
 

Conferences/Workshop/School (Co-)organised

 
  • First International Conference on Biomathematics in Senegal, June 29 to July 01, 2018
  • EDySA&MOMA-2022 : Workshop on Evolutionary Dynamical Systems and Applications (EDySA) and Training on Mathematics and Modeling (MOMA)
  • EDySA-2023 :  Workshop on Evolutionary Dynamical Systems and Applications (EDySA) 
 

Proceeding (Co-)edited

 
  • Luca Gerardo-Giorda, Pierre Magal, Shigui Ruan, Ousmane Seydi, Glenn Webb. Preface: Population dynamics in epidemiology and ecology, Discrete & Continuous Dynamical Systems – B, 2020, 25 (6) : ⅰ-ⅱ. doi: 10.3934/dcdsb.2020125

Book Chapter

  1. M. L. Diagne, M. M. Mbaye and O. Seydi, Monotony and Comparison Principle in Non Autonomous Size Structured Models, In: Seck D., Kangni K., Nang P., Salamon Sambou M. (eds) Nonlinear Analysis, Geometry and Applications. Trends in Mathematics. 2020, pp. 263-298. Birkhäuser, Cham.

   Preprints

  1. R. Djidjou-Demasse, C. Lemdjo, O.Seydi. Global dynamics of a spore producing pathogens epidemic system with nonlocal diffusion process. 2021. ⟨hal-03354455⟩
  2. M. M. Fall, B. M. Ndiaye, O. Seydi, and D. Seck, Analysis of COVID-19 evolution in Senegal: impact of health care capacity. arXiv preprint arXiv:2011.06278. (2020)

Refereed journal articles

  1. F.B. Agusto, R. Djidjou-Demasse, O. Seydi, Mathematical model of Ehrlichia chaffeensis transmission dynamics in dogs, Journal of Biological Dynamics 17 (1) (2023), 2287082
  2. M.L. Mann-Manyombe, A. Mendy, O. Seydi, Linking within- and between-host scales for understanding the evolutionary dynamics of quantitative antimicrobial resistance, J. Math. Biol. 87, 78 (2023). https://doi.org/10.1007/s00285-023-02008-1
  3. R. Djidjou-Demasse, I. Goudiaby and, O. Seydi, Growth bound and threshold dynamic for nonautonomous nondensely defined evolution problems, . J. Math. Biol. 87, 32 (2023). https://doi.org/10.1007/s00285-023-01966-w
  4. R. Djidjou-Demasse, M. L. Mann-Manyombe, O. Seydi and, V. Yatat-Djeumen, Differential preferences for RBCs is key for Plasmodium species evolutionary diversity within human host, Studies in Applied Mathematics (2022) https://doi.org/10.1111/sapm.12527
  5. P. Magal, O Seydi, G. F. Webb, Y. Wu, A Model of Vaccination for Dengue in the Philippines 2016-2018, Frontiers in Applied Mathematics and Statistics (2021),  https://www.frontiersin.org/articles/10.3389/fams.2021.760259/full
  6. I. Mbaye, O Seydi, A. Sonko, On Multilayer Reaction-Diffusion problems: a Semigroup Approach, part I, Quaestiones Mathematicae, 1-25 (2021), https://doi.org/10.2989/16073606.2021.1927233
  7. P. Magal, O Seydi, F. B. Wang, Positively Invariant Subset for Non-Densely Defined Cauchy Problems,  Journal of Mathematical Analysis and Applications 494 (2020),
    https://doi.org/10.1016/j.jmaa.2020.124600.
  8. P. Magal, O. Seydi, Variation of constants formula and exponential dichotomy for non autonomous non densely defined Cauchy problems, Canadian Journal of Mathematics  (2020) https://doi.org/10.4153/S0008414X20000541
  9. Q. Griette, P. Magal, and O. Seydi, Unreported cases for age dependent COVID-19 outbreak in Japan, MPDI Biology (2020), 9, 132.
  10. Z. Liu, P. Magal, O. Seydi, G. F. Webb, A model to predict COVID-19 epidemics with applications to South Korea, Italia, and Spain, SIAM News 53(4)  (2020).
  11. Z. Liu, P. Magal, O. Seydi, G. F. Webb, A COVID-19 epidemic model with latency period, Infectious Disease Modelling 5 (2020), 323-337.
  12. Z. Liu, P. Magal, O. Seydi, G. F. Webb, Predicting the cumulative number of cases for the COVID-19 in China from early data, Mathematical Biosciences and  Engineering 17(4) (2020), 3040-3051.
  13. Z. Liu, P. Magal, O. Seydi, G. F. Webb, Understanding unreported cases in the 2019-nCov epidemic outbreak in Wuhan, China, and the importance of major health interventions, MPDI Biology (2020), 9, 50.
  14. P. Magal, O Seydi, F. B. Wang, Monotone abstract non-densely defined Cauchy problems applied to age structured population dynamic models, Journal of Mathematical Analysis and Applications 479(1) (2019), 450-481.
  15. M. L. Diagne, O. Seydi, A. A. B. Sy, A two-group age of infection epidemic model with periodic behavioral changes, Discrete and Continuous Dynamical Systems-B  25(6) (2019) , 2057-2092.
  16. P. Magal, O. Seydi, Persistence of normally hyperbolic manifolds for a system of non densely defined Cauchy problems, Journal of Differential Equations 267(5) (2019), 2950-3008.
  17. P. Magal, O. Seydi, G. F. Webb, Final size of a multi-group SIR epidemic model : Irreducible and non-irreducible modes of transmission, Mathematical Biosciences 301 (2018), 59-67.
  18. A. Ducrot, P. Magal, O. Seydi, Singular perturbation for an abstract non-densely definedCauchy problem, Journal of Evolution Equations 17(3) (2016), 1089-1128.  
  19. P. Magal, O. Seydi, G. F. Webb, Final size of an epidemic for a two-group SIR model, SIAM Journal on Applied Mathematics  76(5) (2016), 2042-2059.
  20. G. F. Webb, C. Browne, X. Huo, M. Seydi, O. Seydi, P. Magal,  A Model of 2014 Epidemic in West Africa With Contact Tracing, PLOS Currents Outbreaks. 2015 Jan 30.
  21. A.Ducrot, P. Magal, O. Seydi, A finite time condition for exponential trichotomy in infinite dynamical systems,  Canadian Journal of Mathematics 67(5) (2014), 1065-1090.
  22. A. Ducrot, P. Magal, O. Seydi, Persistence of exponential trichotomy for linear operators: A Lyapunov-perron approach, Journal of Dynamics and Differential Equations 28 (2016), 93-126.
  23. A.Ducrot, P. Magal and O. Seydi, A singularly perturbed Delay Differential Equation modeling nosocomial infections, Differential and Integral Equations 29(3-4) (2016), 321-358. 
  24. A. Ducrot, P. Magal and O. Seydi, Nonlinear boundary conditions derived by singular perturbation in age structured population dynamics model, Journal of Applied Analysis and Computation 1 (2011) 373-395.

Postdoc (co)-supervised:

  1. Moctar Kandé: Principal spectrum point and application to a system of Nonlocal Dispersal Operators. With R. Djidjou-Demasse

Ph.D Students (co-)supervised:

  1. Malick Pane : The intra-to-inter-host dynamics of Plasmodium falciparum: evolution, emergence and control of resistance to antimalarials (In progress). With R. Djidjou-Demasse;

Master Students (co-)supervised:

  1. Bassirou Diop : Adaptive dynamics of host-parasite interactions (In progress, University of Thies, Senegal). with R. Djidjou-Demasse;
  2. Malick Pane: Mathematical and numerical analysis of the behavioral model of a foundation plate (Completed in 2020, University of Thies, Senegal), with Ibrahima Mbaye;
  3. Serigne Mansour Diagne : Epidemiological modeling: The case of Malaria (Completed in 2021, Virtual University of Senegal)
  4. Ibrahima Danfakha: Mathematical and numerical study of the Pasternak model (Completed in 2020, University of Thies, Senegal), with Ibrahima Mbaye
  5. Aliou Sonko: Mathematical and Numerical Analysis of two layers a Heat Transfer Problem (Completed in 2020, University of Thies, Senegal), with Ibrahima Mbaye
  6. Ousmane Sy: Two-seater aircraft: CS-23 performance study (Completed in 2020, Polytechnic School of Thies), with Cne Abdoulaye Sarr

Stage en Système Dynamique et  Modélisation DySTEP (Closed)

2015- 

Teaching complex analysis for Tronc Commun 2 (Polytechnic School of Thies)

2015- 2016, 2018-2019

Teaching ordinary differential equations for Tronc Commun 2 (Polytechnic School of Thies)

2014- 
Teaching calculus for Tronc Commun 1 (Polytechnic School of Thies)
2013-2014
Teaching calculus and probability for the second year students in Mathematics and Computer Sciences. (Bordeaux University)
2012-2013
Teaching calculus for the first and second years students in Mathematics and Computer Sciences. (Bordeaux University)
2011-2012
Teaching calculus for the first and second years students in Physics. (Bordeaux University)
2010-2011
Teaching calculus for the first and second years students in Mathematics and Computer Sciences. (Bordeaux University)
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