Comptes Rendus
Partial Differential Equations
Reaction–diffusion equations in space–time periodic media
[Équations de réaction–diffusion en milieu périodique en temps et en espace]
Comptes Rendus. Mathématique, Volume 345 (2007) no. 9, pp. 489-493.

Cette Note traite des équations de réaction–diffusion en milieu périodique à la fois en temps et en espace. Nous établissons des conditions d'existence, d'unicité et de convergence en temps grand pour les solutions de telles équations. Ces conditions sont établies en fonctions de deux valeurs propres principales généralisées associées à une équation linéarisée. Nous établissons plusieurs propriétés de ces deux quantités.

This Note deals with reaction–diffusion in space–time periodic media. We state some conditions for the existence, uniqueness and large-time behavior of the solutions of such equations. These conditions are related to the two generalized principal eigenvalues associated with a linearized equation and we state some properties of these quantities.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crma.2007.10.004

Grégoire Nadin 1

1 Département de mathématiques et applications, École normale supérieure, 45, rue d'Ulm, Paris 75005, France
@article{CRMATH_2007__345_9_489_0,
     author = {Gr\'egoire Nadin},
     title = {Reaction{\textendash}diffusion equations in space{\textendash}time periodic media},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {489--493},
     publisher = {Elsevier},
     volume = {345},
     number = {9},
     year = {2007},
     doi = {10.1016/j.crma.2007.10.004},
     language = {en},
}
TY  - JOUR
AU  - Grégoire Nadin
TI  - Reaction–diffusion equations in space–time periodic media
JO  - Comptes Rendus. Mathématique
PY  - 2007
SP  - 489
EP  - 493
VL  - 345
IS  - 9
PB  - Elsevier
DO  - 10.1016/j.crma.2007.10.004
LA  - en
ID  - CRMATH_2007__345_9_489_0
ER  - 
%0 Journal Article
%A Grégoire Nadin
%T Reaction–diffusion equations in space–time periodic media
%J Comptes Rendus. Mathématique
%D 2007
%P 489-493
%V 345
%N 9
%I Elsevier
%R 10.1016/j.crma.2007.10.004
%G en
%F CRMATH_2007__345_9_489_0
Grégoire Nadin. Reaction–diffusion equations in space–time periodic media. Comptes Rendus. Mathématique, Volume 345 (2007) no. 9, pp. 489-493. doi : 10.1016/j.crma.2007.10.004. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2007.10.004/

[1] H. Berestycki; F. Hamel; L. Roques Analysis of the periodically fragmented environment model: I – Influence of periodic heterogeneous environment on species persistence, J. Math. Biol., Volume 51 (2005), pp. 75-113

[2] H. Berestycki; F. Hamel; L. Roques Analysis of the periodically fragmented environment model: II – Biological invasions and pulsating travelling fronts, J. Math. Pures Appl., Volume 85 (2005), pp. 1101-1146

[3] H. Berestycki; F. Hamel; L. Rossi Liouville-type result for semilinear elliptic equations in unbounded domains, Ann. Mat. Pura Appl. (2006)

[4] R.S. Cantrell; C. Cosner Diffusive logistic equations with indefinite weights: population models in disrupted environments I, Proc. Roy. Soc. Edinburgh, Volume 112 (1989), pp. 293-318

[5] R.S. Cantrell; C. Cosner Diffusive logistic equations with indefinite weights: population models in disrupted environments II, SIAM J. Math. Anal., Volume 22 (1991) no. 4, pp. 1043-1064

[6] P. Hess Periodic-Parabolic Boundary Value Problems and Positivity, Pitman Research Notes in Mathematics Series, vol. 247, Longman Scientific and Technical, 1991

[7] G. Nadin, Existence and uniqueness of the solution of a space–time periodic reaction–diffusion equation, 2007, submitted for publication

[8] G. Nadin, The principal eigenvalue of a space–time periodic parabolic operator, 2007, submitted for publication

[9] G. Nadin, Travelling fronts in space–time periodic media, 2007, in preparation

[10] J. Nolen; M. Rudd; J. Xin Existence of kpp fronts in spatially-temporally periodic advection and variational principle for propagation speeds, Dynam. Partial Differential Equations, Volume 2 (2005) no. 1, pp. 1-24

[11] N. Shigesada; K. Kawasaki Biological Invasions: Theory and Practice, Oxford Series in Ecology and Evolution, Oxford University Press, Oxford, 1997

Cité par Sources :

Commentaires - Politique