A two-species competition model with mixed dispersal and free boundaries in time-periodic environment

TL;DR

This paper studies a two-species competition model with free boundaries in a time-periodic environment, analyzing spreading and vanishing behaviors with mixed dispersal strategies.

Contribution

It introduces a novel competition model with mixed dispersal and free boundaries, providing existence, uniqueness, and long-term behavior analysis.

Findings

Unique global solution exists for the model.

Criteria for spreading and vanishing are established.

Long-term asymptotic behavior characterized under weak competition.

Abstract

This paper is concerned with a Lotka-Volterra type competition model with free boundaries in time-periodic environment. One species is assumed to adopt nonlocal dispersal and the other one adopts mixed dispersal, which is a combination of both random dispersal and nonlocal dispersal. We show that this free boundary problem with more general growth functions admits a unique solution defined for all time. A spreading-vanishing dichotomy is obtained and criteria for spreading and vanishing are provided. Moreover, under the weak competition condition we provide the long-time asymptotic behavior of solution when spreading occurs.