Fujita-type theorems for a quasilinear parabolic differential inequality with weighted nonlocal source term

Autor: Li Yuepeng, Fang Zhong Bo
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Advances in Nonlinear Analysis, Vol 12, Iss 1, Pp 1687-1711 (2023)
Druh dokumentu: article
ISSN: 2191-950X
DOI: 10.1515/anona-2022-0303
Popis: This work is concerned with the nonexistence of nontrivial nonnegative weak solutions for a quasilinear parabolic differential inequality with weighted nonlocal source term in the whole space, which involves weighted polytropic filtration operator or generalized mean curvature operator. We establish the new critical Fujita exponents containing the first and second types. The key ingredient of the technique in proof is the test function method developed by Mitidieri and Pohozaev. No use of comparison and maximum principles or assumptions on symmetry or behavior at infinity of the solutions are required.
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