Life Span of Solutions for a Time Fractional Reaction-Diffusion Equation with Non-Decaying Initial Data
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Abstract
We consider the Cauchy problem of time fractional reaction-diffusion equation where 0 < α < 1, p > 1 and denotes the Caputo time fractional derivative of order α. The initial condition is assumed to be nonnegative and bounded continuous function. For the nondecaying initial data at space infinity, we show that the positive solution blows up in finite time and give the estimate of the life span of positive solutions. It is also given blow-up time of the solutions when the initial data attain its maximum at space infinity.
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2022-06-01
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