Ramsès Djidjou-Demasse

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Documents

Présentation

Chargé de Recherche IRD affecté au laboratoire MIVEGEC à Montpellier.

Mes travaux portent sur l'analyse Mathématique et la Modélisation de systèmes complexes (ou non), avec un accent particulier sur les Systèmes Dynamiques. Les applications résultant de ces travaux concernent (mais pas que) l'épidémiologie, l'évolution des maladies infectieuses et l'écologie.

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Publications

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Mutant emergence timing and population immunisation status impact epidemiological dynamics

Bastien Reyné , Ramsès Djidjou-Demasse , Mircea T Sofonea , Samuel Alizon
Journal of Theoretical Biology, 2025, 608, pp.112140. ⟨10.1016/j.jtbi.2025.112140⟩
Article dans une revue hal-05069967 v1
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Within-host mathematical modeling of antibiotic-phage treatments on lysogenic and non-lysogenic bacteria dynamics

Hyacinthe M Ndongmo Teytsa , Ousmane Seydi , Berge Tsanou , Ramsès Djidjou-Demasse
Mathematical Methods in the Applied Sciences, 2025
Article dans une revue hal-04589005 v2
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Mathematical modeling of intra-and inter-species interactions in mixed malaria within-host infections

Malick Pane , Quentin Richard , Ousmane Seydi , Ramsès Djidjou-Demasse
Journal of Mathematical Analysis and Applications, 2025, 547 (1), pp.129251. ⟨10.1016/j.jmaa.2025.129251⟩
Article dans une revue hal-04580095 v2
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Understanding the transmission of bacterial agents of sapronotic dseases in aquatic ecosystems: a first spatially realistic metacommunity model

Ahmadou Sylla , Christine Chevillon , Ramsès Djidjou-Demasse , Ousmane Seydi , Carlos a Vargas Campos et al.
PLoS Computational Biology, 2024, pp.1991 - 2002. ⟨10.1371/journal.pcbi.1012435⟩
Article dans une revue hal-04350566 v2
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Antiviral capacity of the early CD8 T-cell response is predictive of natural control of SIV infection: Learning in vivo dynamics using ex vivo data

Bharadwaj Vemparala , Vincent Madelain , Caroline Passaes , Antoine Millet , Véronique Avettand-Fenoel et al.
PLoS Computational Biology, 2024, 20 (9), pp.e1012434. ⟨10.1371/journal.pcbi.1012434⟩
Article dans une revue hal-04711877 v1
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Mosquito ageing modulates the development, virulence and transmission potential of pathogens

Bernard Somé , Edwige Guissou , Dari Da , Quentin Richard , Marc Choisy et al.
Proceedings of the Royal Society B: Biological Sciences, 2024, 291 (2014), pp.20232097. ⟨10.1098/rspb.2023.2097⟩
Article dans une revue hal-04744732 v1
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Quantifying ivermectin's optimal strategy impacts on malaria transmission: A dual-structured mathematical model

Franck J Dongmo , Charles S Wondji , Berge Tsanou , Ramsès Djidjou-Demasse
Applicable Analysis, 2024, pp.1-39. ⟨10.1080/00036811.2024.2429103⟩
Article dans une revue hal-04860540 v1
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On the necessity of accounting for age structure in human malaria transmission modeling

Quentin Richard , Marc Choisy , Thierry Lefèvre , Ramsès Djidjou-Demasse
Mathematical Biosciences, 2024, 378, pp.109319. ⟨10.1016/j.mbs.2024.109319⟩
Article dans une revue hal-04231975 v3
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Within-host evolutionary dynamics of antimicrobial quantitative resistance

Ramsès Djidjou-Demasse , Mircea T Sofonea , Marc Choisy , Samuel Alizon
Mathematical Modelling of Natural Phenomena, 2023, 18, pp.24. ⟨10.1051/mmnp/2023019⟩
Article dans une revue hal-03194023 v4
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Mathematical model of Ehrlichia chaffeensis transmission dynamics in dogs

Folashade B Agusto , Ousmane Seydi , Ramsès Djidjou-Demasse
Journal of Biological Dynamics, In press, ⟨10.1080/17513758.2023.2287082⟩
Article dans une revue hal-04296909 v1
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Linking within-and between-host scales for understanding the evolutionary dynamics of quantitative antimicrobial resistance

Martin L Mann-Manyombe , Abdoulaye Mendy , Ousmane Seydi , Ramsès Djidjou-Demasse
Journal of Mathematical Biology, 2023, ⟨10.1007/s00285-023-02008-1⟩
Article dans une revue hal-03911294 v2
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Growth bound and threshold dynamic for nonautonomous nondensely defined evolution problems

Ramsès Djidjou-Demasse , Ibou Goudiaby , Ousmane Seydi
Journal of Mathematical Biology, In press, ⟨10.1007/s00285-023-01966-w⟩
Article dans une revue hal-03883208 v2
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Non-Markovian modelling highlights the importance of age structure on Covid-19 epidemiological dynamics

Bastien Reyné , Quentin Richard , Christian Selinger , Mircea T Sofonea , Ramsès Djidjou-Demasse et al.
Mathematical Modelling of Natural Phenomena, 2022, 17, pp.7. ⟨10.1051/mmnp/2022008⟩
Article dans une revue hal-03629334 v1
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Understanding dynamics of Plasmodium falciparum gametocytes production: Insights from an age-structured model

Ramsès Djidjou-Demasse , Arnaud Ducrot , Nicole Mideo , Gaëtan Texier
Journal of Theoretical Biology, 2022, 539, ⟨10.1016/j.jtbi.2022.111056⟩
Article dans une revue hal-03030234 v3
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An epi‐evolutionary model for predicting the adaptation of spore‐producing pathogens to quantitative resistance in heterogeneous environments

Frédéric Fabre , Jean-Baptiste Burie , Arnaud Ducrot , Sébastien Lion , Quentin Richard et al.
Evolutionary Applications, 2022, pp.95-110. ⟨10.1111/eva.13328⟩
Article dans une revue hal-03465168 v1
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Differential preferences for RBCs is key for Plasmodium species evolutionary diversity within human host

Ramsès Djidjou-Demasse , M L Mann-Manyombe , O Seydi , I V Yatat-Djeumen
Studies in Applied Mathematics, 2022, ⟨10.1111/sapm.12527⟩
Article dans une revue hal-03272322 v1
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Optimizing the early detection of low pathogenic avian influenza H7N9 virus in live bird markets

Claire Guinat , Damian Tago , Tifenn Corre , Christian Selinger , Ramsès Djidjou-Demasse et al.
Journal of the Royal Society Interface, 2021, 18 (178), pp.20210074. ⟨10.1098/rsif.2021.0074⟩
Article dans une revue hal-03285866 v1
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Within-host bacterial growth dynamics with both mutation and horizontal gene transfer

Ramsès Djidjou-Demasse , Samuel Alizon , Mircea T Sofonea
Journal of Mathematical Biology, 2021, ⟨10.1007/s00285-021-01571-9⟩
Article dans une revue hal-02500420 v1
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Memory is key in capturing COVID-19 epidemiological dynamics

Mircea T Sofonea , Bastien Reyné , Baptiste Elie , Ramsès Djidjou-Demasse , Christian Selinger et al.
Epidemics, 2021, 35, pp.100459. ⟨10.1016/j.epidem.2021.100459⟩
Article dans une revue hal-03289624 v1
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Optimal intervention strategies of staged progression HIV infections through an age-structured model with probabilities of ART drop out

Mboya Ba , Ramsès Djidjou-Demasse , Mountaga Lam , Jean Jules Tewa
Mathematical Modelling of Natural Phenomena, 2021, ⟨10.1051/mmnp/2021024⟩
Article dans une revue hal-02357239 v1
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Age-structured non-pharmaceutical interventions for optimal control of COVID-19 epidemic

Quentin Richard , Samuel Alizon , Marc Choisy , Mircea T Sofonea , Ramsès Djidjou-Demasse
PLoS Computational Biology, 2021, ⟨10.1371/journal.pcbi.1008776⟩
Article dans une revue hal-02879512 v3
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Human-vector malaria transmission model structured by age, time since infection and waning immunity

Quentin Richard , Marc Choisy , Thierry Lefèvre , Ramsès Djidjou-Demasse
Nonlinear Analysis: Real World Applications, 2021, ⟨10.1016/j.nonrwa.2021.103393⟩
Article dans une revue hal-03090649 v1

Slow convergence to equilibrium for an evolutionary epidemiology integro-differential system

Jean-Baptiste Burie , Ramsès Djidjou-Demasse , Arnaud Ducrot
Discrete and Continuous Dynamical Systems - Series B, 2020, 25 (6), pp.2223-2243. ⟨10.3934/dcdsb.2019225⟩
Article dans une revue hal-02888796 v1
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Asymptotic and transient behaviour for a nonlocal problem arising in population genetics

Jean-Baptiste Burie , R Djidjou-Demasse , Arnaud Ducrot
European Journal of Applied Mathematics, 2020, 31 (1), pp.84-110. ⟨10.1017/S0956792518000487⟩
Article dans une revue hal-01874125 v1

Investigating the Resurgence of Malaria Prevalence in South Africa Between 2015 and 2018: A Scoping Review

Gbenga Abiodun , Babatope. Adebiyi , Rita Abiodun , Olanrewaju Oladimeji , Kelechi Oladimeji et al.
The Open Public Health Journal, 2020, 13 (1), pp.119-125. ⟨10.2174/1874944502013010119⟩
Article dans une revue hal-02597335 v1
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A Dynamical and Zero-Inflated Negative Binomial Regression Modelling of Malaria Incidence in Limpopo Province, South Africa

Gbenga Abiodun , Olusola Makinde , Abiodun Adeola , Kevin y Njabo , Peter Witbooi et al.
International Journal of Environmental Research and Public Health, 2019, 16 (11), pp.2000. ⟨10.3390/ijerph16112000⟩
Article dans une revue hal-02450365 v1

Development and analysis of a malaria transmission mathematical model with seasonal mosquito life‐history traits

Ramsès Djidjou-Demasse , Gbenga Abiodun , Abiodun Adeola , Joel Botai
Studies in Applied Mathematics, 2019, ⟨10.1111/sapm.12296⟩
Article dans une revue hal-02450371 v1

Study of Lasidiodiplodia pseudotheobromae, Neofusicoccum parvum and Schizophyllum commune, three pathogenic fungi associated with the Grapevine Trunk Diseases in the North of Tunisia

A. Rezgui , J. Vallance , A. Ben Ghnaya-Chakroun , E. Bruez , M. Dridi et al.
European Journal of Plant Pathology, 2018, 152 (1), pp.127-142. ⟨10.1007/s10658-018-1458-z⟩
Article dans une revue hal-02450374 v1

Mosaics often outperform pyramids: insights from a model comparing strategies for the deployment of plant resistance genes against viruses in agricultural landscapes

Ramsès Emeric Djidjou Demasse , Benoît Moury , Frédéric Fabre
New Phytologist, 2017, 216 (1), pp.239-253. ⟨10.1111/nph.14701⟩
Article dans une revue hal-01604528 v1

Steady state concentration for a phenotypic structured problem modeling the evolutionary epidemiology of spore producing pathogens

Ramsès Djidjou Demasse , Arnaud Ducrot , Frédéric Fabre
Mathematical Models and Methods in Applied Sciences, 2017, 27 (2), pp.385-426. ⟨10.1142/S0218202517500051⟩
Article dans une revue hal-01604796 v1

Optimal control for an age-structured model for the transmission of hepatitis B

Ramsès Djidjou Demasse , Jean-Jules Tewa , Samuel Bowong , Yves Emvudu
Journal of Mathematical Biology, 2016, 73 (2), pp.305-333. ⟨10.1007/s00285-015-0952-6⟩
Article dans une revue hal-02450359 v1

Bifurcation Analysis and Optimal Harvesting of a Delayed Predator–Prey Model

P. Tchinda Mouofo , R. Djidjou Demasse , J. J. Tewa , M. A. Aziz-Alaoui
International journal of bifurcation and chaos in applied sciences and engineering , 2015, 25 (01), pp.1550012. ⟨10.1142/S0218127415500121⟩
Article dans une revue hal-02304508 v1
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Analysis of an Age-structured SIL model with demographics process and vertical transmission

Ramses Djidjou Demasse , Jean Jules Tewa , Samuel Bowong
Revue Africaine de Recherche en Informatique et Mathématiques Appliquées, 2014, Volume 17 - 2014 - Special issue CARI'12, pp.23-52. ⟨10.46298/arima.1966⟩
Article dans une revue hal-01300058 v1

An age-structured within-host model for multi-strain malaria infections

Ramses Demasse , Arnaud Ducrot
SIAM Journal on Applied Mathematics, 2013, pp.572--593
Article dans une revue hal-00992786 v1

Optimal control using state-dependent Riccati equation of lost of sight in a tuberculosis model

Yves Emvudu , Ramses Djidjou Demasse , Dany Djeudeu
Computational & Applied Mathematics, 2013, 32 (2), pp.191-210. ⟨10.1007/s40314-013-0002-1⟩
Article dans une revue hal-02450362 v1
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Predator-prey model with prey harvesting, Holling response function of type III and SIS disease

Jean Jules Tewa , Ramses Djidjou Demasse , Samuel Bowong
Article dans une revue hal-02450368 v1

Optimal Control of the Lost to Follow Up in a Tuberculosis Model

Yves Emvudu , Ramses Demasse , Dany Djeudeu
Computational and Mathematical Methods in Medicine, 2011, 2011, pp.1-12. ⟨10.1155/2011/398476⟩
Article dans une revue hal-02450354 v1

Gestion durable des résistances de la vigne au mildiou : la modélisation mathématique à la rescousse

Ramsès Djidjou Demasse , A. Ducrot , Jean-Baptiste Burie , François Delmotte , Frédéric Fabre
13. Journée technique du CIVB, Conseil Interprofessionnel des Vins de Bordeaux (CIVB). FRA., Feb 2017, Bordeaux, France
Communication dans un congrès hal-02787146 v1
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Mosaics of plant disease resistance genes are a more versatile means of achieving disease control than pyramids in most agricultural landscapes

Ramsès Emeric Djidjou Demasse , Benoît Moury , Frédéric Fabre
10. Conférence de la Société française de phytopathologie - 12. European foundation for plant pathology conference, May 2017, Malo-les-Bains, France. , 2017, Deepen knowledge in plant pathology for innovative agro-ecology
Poster de conférence hal-02733690 v1
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Optimizing multi-drug strategies to prevent antimicrobial quantitative resistance: A nested within-and between-host model

Martin L Mann-Manyombe , Mircea T Sofonea , Marc Choisy , Ramsès Djidjou-Demasse
2025
Pré-publication, Document de travail hal-04894904 v1
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Modeling the evolutionary dynamics of insecticide quantitative resistance in mosquito populations

Sylvère Kezeta-Bondja , Martin L Mann-Manyombe , Jean-Jules Tewa , Charles S Wondji , Ramsès Djidjou-Demasse
2025
Pré-publication, Document de travail hal-04915614 v1
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Evolutionary attractors in the chemostat model

Ramsès Djidjou-Demasse , Ousmane Seydi , Alain Rapaport
2024
Pré-publication, Document de travail hal-04734061 v1
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Within-host dynamics of lysogen and non-lysogen bacteria with spontaneous prophage induction phenomenon

Hyacinthe Ndongmo Teytsa , Ousmane Seydi , Berge Tsanou , Ramsès Djidjou-Demasse
2023
Pré-publication, Document de travail hal-04035511 v1
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Principal spectrum point and application to nonlocal dispersal operators

Ramsès Djidjou-Demasse , Mocatar Kandé , Ousmane Seydi
2022
Pré-publication, Document de travail hal-03691803 v1
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Flow invariance for non densely defined Cauchy problems

Moustapha Dieye , Ramsès Djidjou-Demasse , Ousmane Seydi
2022
Pré-publication, Document de travail hal-03818279 v1
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Épidémiologie mathématique & modélisation de la pandémie de COVID-19 : enjeux et diversité

Ramsès Djidjou-Demasse , Christian Selinger , Mircea T Sofonea
2020
Pré-publication, Document de travail hal-02924338 v1
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Epidemiological monitoring and control perspectives: application of a parsimonious modelling framework to the COVID-19 dynamics in France

Mircea T Sofonea , Bastien Reyné , Baptiste Elie , Ramsès Djidjou-Demasse , Christian Selinger et al.
2020
Pré-publication, Document de travail hal-02619546 v1
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Optimal COVID-19 epidemic control until vaccine deployment

R Djidjou-Demasse , Y. Michalakis , M Choisy , M. T. Sofonea , Samuel Alizon
2020
Pré-publication, Document de travail hal-02533223 v1
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Modeling SIV kinetics supports that cytotoxic response drives natural control and unravels heterogeneous populations of infected cells

V Madelain , C Passaes , A. Millet , V. Avettand-Fenoel , Ramsès Emeric Djidjou Demasse et al.
2020
Pré-publication, Document de travail pasteur-02865372 v1
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Modèles structurés et applications en dynamique des populations

Ramsès Djidjou-Demasse
Equations aux dérivées partielles [math.AP]. Université Le Havre Normandie, 2022
HDR tel-03700629 v1