On a backward problem for two-dimensional time fractional wave equation with discrete random data

Authors: Trần Ngọc Thạch, Yong Zhou, Nguyễn Huy Tuấn, Nguyễn Huy Tuấn,

https://doi.org/10.3934/eect.2020024

Publisher, magazine: ,

Publication year: 2020

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Abstract

This paper is concerned with a backward problem for a two- dimensional time fractional wave equation with discrete noise. In general, this problem is ill-posed, therefore the trigonometric method in nonparametric regression associated with Fourier truncation method is proposed to solve the problem. We also give some error estimates and convergence rates between the regularized solution and the sought solution under some assumptions.

Tags: Backward problem, ill-posed, discrete random data, time fractional wave equation, truncation method.