The Second Critical Exponent for a Time-Fractional Reaction-Diffusion Equation

Autor: Takefumi Igarashi
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Mathematics, Vol 12, Iss 18, p 2895 (2024)
Druh dokumentu: article
ISSN: 2227-7390
DOI: 10.3390/math12182895
Popis: In this paper, we consider the Cauchy problem of a time-fractional nonlinear diffusion equation. According to Kaplan’s first eigenvalue method, we first prove the blow-up of the solutions in finite time under some sufficient conditions. We next provide sufficient conditions for the existence of global solutions by using the results of Zhang and Sun. In conclusion, we find the second critical exponent for the existence of global and non-global solutions via the decay rates of the initial data at spatial infinity.
Databáze: Directory of Open Access Journals
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