The well-posedness and blow up phenomenon for a Tsunamis model with time-fractional derivative

TL;DR

This paper investigates the mathematical properties of a time-fractional tsunami model, establishing conditions for well-posedness and finite-time blow-up of solutions within a specific functional framework.

Contribution

It provides the first analysis of well-posedness and blow-up phenomena for a fractional tsunami shallow-water model using conformable derivatives.

Findings

Local well-posedness in critical Besov space

Finite-time blow-up under certain conditions

Use of conformable fractional derivative in analysis

Abstract

This paper is concerned with the well-posedness of a time-fractional shallow-water equations, which has received little attention. In the realm of fractional calculus, numerous types of fractional derivatives have been explored in the literature. Among these, one of the most notable and well-structured ones is the conformable fractional derivative. In this paper, we delve into the local well-posedness of the fractional tsunami shallow-water mathematical model in the critical Besov space $B^{\frac{3}{2}}_{2,1}$. Under some symmetric and sign conditions, we show that the strong solution will blow up in finite time.