Abstract
The blow-up of a class of nondegenerate parabolic equations in a bounded domain will be considered in the sense that the nonnegative diffusion coefficient allowed us to discuss our blow-up results differently. We prove blow-up results and give a new lower and upper bounds of the blow-up time to a class of semilinear reaction-diffusion equations and a nonlinear equation governed by the -Laplacian, for .
Acknowledgments
The authors would like to thank the anonymous referees and the handling editor for their reading and relevant remarks/suggestions.
Disclosure statement
No potential conflict of interest was reported by the author(s).