Abstract
In this paper, we study long-time behaviours of solutions to the discrete reaction-diffusion equations with nontrivial and nonnegative initial data, under the mixed boundary conditions. In particular, the function f satisfies for some constants and positive real numbers p and q. The purpose of this paper is to introduce a critical set depending on the nonnegative continuous function ψ. Also, we discuss about Fujita-type blow-up, which depends on the critical set .
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