Stability analysis for some numerical schemes of partial differential equation with extra measurements

Yıl 2019, Cilt: 48 Sayı: 5, 1324 - 1335, 08.10.2019

Nazi Abdollahi Davood Rostamy

https://doi.org/10.15672/HJMS.2019.661

Öz

This paper is devoted to study the stability analysis of some finite difference schemes for  an inverse problem with unknowns time-dependent coefficients subject to extra measurements. We prove that the popular forward time centered space scheme is a conditional method. But the backward time centered space and Crank Nicolson methods are suitable schemes because they are unconditional methods. We justify this advantage of the stability analysis versus the some numerical methods with an example. All the results and a numerical example are in two-dimensional setting.

Anahtar Kelimeler

Von Neumann stability analysis, inverse problems, finite difference methods

Kaynakça

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