Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Lobry, Claude"'
This paper is a follow-up to a previous work where we considered populations with time-varying growth rates living in patches and irreducible migration matrix between the patches. Each population, when isolated, would become extinct. Dispersal-induce
Externí odkaz:
http://arxiv.org/abs/2407.07553
Publikováno v:
Journal of Mathematical Biology (2024) 88:19
We consider populations with time-varying growth rates living in sinks. Each population, when isolated, would become extinct. Dispersal-induced growth (DIG) occurs when the populations are able to persist and grow exponentially when dispersal among t
Externí odkaz:
http://arxiv.org/abs/2311.04706
In a recent paper [Asymptotic of the largest Floquet multiplier for cooperative matrices Annales de la Facult\'e des Sciences de Toulouse, Tome XXXI, no 4 (2022)] P. Carmona gives an asymptotic formulae for the top Lyapunov exponent of a linear T-per
Externí odkaz:
http://arxiv.org/abs/2302.05874
Autor:
Lobry, Claude
We consider a slow-fast differential system (SF) in dimension two which appears in the study of some linear model (LM) with periodic coefficients in population dynamics. We show existence of "canard solutions" of (SF) along semi-stable slow curve whi
Externí odkaz:
http://arxiv.org/abs/2203.10357
Autor:
Lobry, Claude
We consider a slow-fast differential system (SF) in dimension two which appears in the study of some linear model (LM) with periodic coefficients in population dynamics. We show existence of "canard solutions" of (SF) along semi-stable slow curve whi
Externí odkaz:
http://arxiv.org/abs/2203.04712
Publikováno v:
Theoretical Population Biology 154 (2023) 1-26
We consider a population distributed between two habitats, in each of which it experiences a growth rate that switches periodically between two values, $1- \varepsilon > 0$ or $ - (1 + \varepsilon) < 0$. We study the specific case where the growth ra
Externí odkaz:
http://arxiv.org/abs/2111.12633
Autor:
Lobry, Claude
L’Analyse Non Standard (l’ANS) est un formalisme mathématique particulier inventé dans les années 1960 par le mathématicien A. Robinson. Ce formalisme permet de renouer avec les infinitésimaux de Leibniz qui avaient été abandonnés au XIX
Externí odkaz:
http://www.theses.fr/2019AZUR2017/document
Publikováno v:
In Theoretical Population Biology December 2023 154:1-26
Autor:
Fletcher, Peter, Hrbacek, Karel, Kanovei, Vladimir, Katz, Mikhail G., Lobry, Claude, Sanders, Sam
Publikováno v:
Real Analysis Exchange 42 (2017), no. 2, 193-252
This is a survey of several approaches to the framework for working with infinitesimals and infinite numbers, originally developed by Abraham Robinson in the 1960s, and their constructive engagement with the Cantor-Dedekind postulate and the Intended
Externí odkaz:
http://arxiv.org/abs/1703.00425