Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Evariste Sanchez-Palencia"'
Publikováno v:
Mathematics, Vol 12, Iss 7, p 1117 (2024)
We give a series of numerical examples of competitive evolution in the predation system, showing in some cases how the choice is made to increase the efficiency of the predation mechanism (or other significant parameters) to the detriment of populati
Externí odkaz:
https://doaj.org/article/553a954cc7164c80bfabab81d4e78f2a
Publikováno v:
Electronic Journal of Differential Equations, Vol 2015, Iss 22, Pp 63-77 (2015)
We present a model for the competition of two biological entities into the same species (polyphasie, clonal/sex, cancerous cells), the first one with a birth ratio higher than the second when the resources are abundant, whereas the situation is re
Externí odkaz:
https://doaj.org/article/59c2aeb6347345ddb91eba1c1b0f69a2
Publikováno v:
Discrete and Continuous Dynamical Systems-Series S
Discrete and Continuous Dynamical Systems-Series S, American Institute of Mathematical Sciences, 2020, 13 (8), pp.2195-2209. ⟨10.3934/dcdss.2020185⟩
Discrete and Continuous Dynamical Systems-Series S, American Institute of Mathematical Sciences, 2020, 13 (8), pp.2195-2209. ⟨10.3934/dcdss.2020185⟩
International audience; The causality scheme of an (essentially non symmetric) predator-prey system involves automaticaly advantages and disadvantages highly dependent on time. We study systems with one predator and one or two preys furnishing issues
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27e66a287eea527cfa4b65158f84c5c7
https://doi.org/10.3934/dcdss.2020185
https://doi.org/10.3934/dcdss.2020185
Publikováno v:
Discrete & Continuous Dynamical Systems - S. 12:1775-1789
There are several definitions of persistence of species, which amount to define interactions between them ensuring the survival of all the species initially present in the system. The aim of this paper is to present a wide family of examples in dimen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec9b5bc70bcca76de32f5b489d7bb079
https://doi.org/10.3934/dcdss.2019117
https://doi.org/10.3934/dcdss.2019117
Publikováno v:
Acta Biotheoretica
Acta Biotheoretica, Springer Verlag, In press, ⟨10.1007/s10441-021-09413-3⟩
Acta Biotheoretica, Springer Verlag, In press, ⟨10.1007/s10441-021-09413-3⟩
International audience; We propose a mathematical model for a class of predator-prey systems more complex than the usual one, involving a commensalism effect consisting in an influence of the predator on the sustainability of the prey. This effect in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a3c7bda357f43b00c97a4891a26dc52
https://hal.sorbonne-universite.fr/hal-03244151/document
https://hal.sorbonne-universite.fr/hal-03244151/document
Publikováno v:
Acta Biotheoretica
Acta Biotheoretica, Springer Verlag, 2018, pp.1-13. ⟨10.1007/s10441-019-09353-z⟩
Acta Biotheoretica, Springer Verlag, 2018, pp.1-13. ⟨10.1007/s10441-019-09353-z⟩
International audience; We address the biological dynamics problem of the persistence of several species in conditions of non-existence of an equilibrium, including an example of stabilization by predation and the very controversial "competitive excl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94c3897a0af486f80973a07a03a557ed
https://hal.sorbonne-universite.fr/hal-02289362/document
https://hal.sorbonne-universite.fr/hal-02289362/document
Autor:
Evariste Sanchez-Palencia
Publikováno v:
Biologie Aujourd'hui. 210:45-52
Ce texte est la version ecrite d’un expose devant la Societe de Biologie le 17 fevrier 2016. Il contient des reflexions d’un scientifique non biologiste sur la problematique de l’evolution biologique, le type de causalite qu’elle met en œuvr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29e557aa5cd0f23b7e31f68c4949a82b
https://doi.org/10.1051/jbio/2016011
https://doi.org/10.1051/jbio/2016011
Publikováno v:
Mathematical Methods in the Applied Sciences. 39:104-133
In a previous work on perturbation theory in population dynamics, we showed several plausible situations of preservation of the biodiversity. We give now an improved version of the method exhibiting a phenomenon of emergence of structured diversity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26f171f196525dd46831ca126f03af4b
https://doi.org/10.1002/mma.3463
https://doi.org/10.1002/mma.3463
Autor:
Evariste, Sanchez-Palencia
Publikováno v:
Biologie aujourd'hui. 210(1)
This text is the written version of a talk at the Société de Biologie on February 17, 2016. It contains reflections of a non-biologist scientist on general problems of biological evolution, including the kind of causality involved, the ideas emergi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::92f39aac01f0473bcf4761a93934ae2e
https://pubmed.ncbi.nlm.nih.gov/27286580
https://pubmed.ncbi.nlm.nih.gov/27286580
Publikováno v:
Acta Biotheoretica
Acta Biotheoretica, Springer Verlag, 2016, 64 (4), pp.537-552. ⟨10.1007/s10441-016-9293-0⟩
Acta Biotheoretica, 2016, 64 (4), pp.537-552. ⟨10.1007/s10441-016-9293-0⟩
Acta Biotheoretica, Springer Verlag, 2016, 64 (4), pp.537-552. ⟨10.1007/s10441-016-9293-0⟩
Acta Biotheoretica, 2016, 64 (4), pp.537-552. ⟨10.1007/s10441-016-9293-0⟩
International audience; The present work is a contribution to the understanding of the sempiternal problem of the “burden of factor two” implied by sexual reproduction versus asexual one, as males are energy consumers not contributing to the prod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac43723f27e8c90cbf14ef6a78607c0e
https://pubmed.ncbi.nlm.nih.gov/27738842
https://pubmed.ncbi.nlm.nih.gov/27738842