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Persistence of traveling wave solutions in a bio-reactor model with nonlocal delays
Authors:Yun-Rui Yang  Wan-Tong Li  Guo Lin
Affiliation:1. School of Mathematics and Statistics, Lanzhou University, Lanzhou, Gansu 730000, PR China;2. School of Mathematics, Physics and Software Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, PR China
Abstract:By considering the random migration of individuals and the period of consuming the captured nutrient, we first introduce the nonlocal delays into a bio-reactor model. The persistence of nontrivial traveling wave solutions then is proved by combining the geometric singular perturbation theory with the center manifold theorem. From the viewpoint of biology, our results indicate that the nonlocality induced by small average delays is harmless to the growth of the species.
Keywords:Persistence   Traveling wave   Singular perturbation   Center manifold theorem   Nonlocal delays   Bio-reactor model
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