Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Coville, Jerome"'
This paper is devoted to studying propagation phenomena in integro-differential equations with a weakly degenerate non-linearity. The reaction term can be seen as an intermediate between the classical logistic (or Fisher-KPP) non-linearity and the st
Externí odkaz:
http://arxiv.org/abs/2412.06505
In this paper we revisit the notion of grouped dispersal that have been introduced by Soubeyrand and co-authors \cite{soubeyrand2011patchy} to model the simultaneous (and hence dependent) dispersal of several propagules from a single source in a homo
Externí odkaz:
http://arxiv.org/abs/2405.08384
This paper focuses on propagation phenomena in reaction-diffusion equations with a weaklymonostable nonlinearity. The reaction term can be seen as an intermediate between the classicallogistic one (or Fisher-KPP) and the standard weak Allee effect on
Externí odkaz:
http://arxiv.org/abs/2312.09614
Estimates on the asymptotic behaviour of solution to linear integro-differential equations are fundamental in understanding the dynamics occuring in many nonlocal evolution problems. They are usually derived by using precise decay estimates on the he
Externí odkaz:
http://arxiv.org/abs/2303.00101
In this work we propose a measure-valued stochastic process representing the dynamics of a virus population, structured by phenotypic traits and geographical space, and where viruses are transported between spatial locations by mechanical vectors. As
Externí odkaz:
http://arxiv.org/abs/2211.04563
Autor:
Gabriel, Edith, Rodríguez-Cortes, Francisco J., Coville, Jérôme, Mateu, Jorge, Chadoeuf, Joël
Seismic networks provide data that are used as basis both for public safety decisions and for scientific research. Their configuration affects the data completeness, which in turn, critically affects several seismological scientific targets (e.g., ea
Externí odkaz:
http://arxiv.org/abs/2111.14403
In this paper, we consider a resource-consumer model taking into account a mutation effect between species (with constant mutation rate). The corresponding mutation operator is a discretization of the Laplacian in such a way that the resulting dynami
Externí odkaz:
http://arxiv.org/abs/2110.09582
We study acceleration phenomena in monostable integro-differential equations with ignition nonlinearity. Our results cover fractional Laplace operators and standard convolutions in a unified way, which is also a contribution of this paper. To achieve
Externí odkaz:
http://arxiv.org/abs/2105.09946
We study an acceleration phenomenon arising in monostable integro-differential equations with a weak Allee effect. Previous works have shown its occurrence and have given correct upper bounds on the rate of expansion in some particular cases, but pre
Externí odkaz:
http://arxiv.org/abs/2105.09911
Autor:
Coville, Jérôme
In this article, we analyse the non-local model : $\partial$ t U (t, x) = J $\star$ U (t, x) -- U (t, x) + f (x -- ct, U (t, x)) for t > 0, and x $\in$ R, where J is a positive continuous dispersal kernel and f (x, s) is a heterogeneous KPP type non-
Externí odkaz:
http://arxiv.org/abs/2012.09441