Asymptotics of the KPP minimal speed within large drift

作者：El Smaily Mohammad^*; Kirsch Stephane

来源：Comptes Rendus Mathematique, 2010, 348(15-16): 857-861.

DOI：10.1016/j.crma.2010.07.007

This Note is concerned with the asymptotic behavior of the minimal KPP speed of propagation for reaction-advection-diffusion equations with a large drift Mq (where q is the advection). We first give the limit of the speed as M -> +infinity in any space dimension N. Then, we give the necessary and sufficient condition that the advection field should satisfy so that the speed acts as O(M) as M -> +infinity.

• 出版日期2010-8