Existence of nonnegative nontrivial periodic solutions to a doubly degenerate parabolic equation with variable exponent
Zhongqing Li, Wenjie Gao · Boundary Value Problems · 2014
The authors investigate a degenerate parabolic equation with delay and nonlocal term, which describes slow diffusive processes in physics or biology.The existence of a nonnegative nontrivial periodic solution is obtained through the use of the Leray-Schauder degree method.