On an initial boundary value problem for fractional pseudo-parabolic equation with conformable derivative

Math Biosci Eng. 2022 Aug 5;19(11):11232-11259. doi: 10.3934/mbe.2022524.

Abstract

In this paper, we study the initial boundary value problem of the pseudo-parabolic equation with a conformable derivative. We focus on investigating the existence of the global solution and examining the derivative's regularity. In addition, we contributed two interesting results. Firstly, we proved the convergence of the mild solution of the pseudo-parabolic equation to the solution of the parabolic equation. Secondly, we examine the convergence of solution when the order of the derivative of the fractional operator approaches $ 1^- $. Our main techniques used in this paper are Banach fixed point theorem and Sobolev embedding. We also apply different techniques to evaluate the convergence of generalized integrals encountered.

Keywords: conformable derivative; pseudo-parabolic equation; regularity estimates; well-posedness.