English

Matlab program method of computing Carleman estimates and applications

Optimization and Control 2021-12-14 v2 Numerical Analysis Numerical Analysis

Abstract

In this paper, we introduce a Matlab program method to compute Carleman estimate for the fourth order partial differential operator γt+x4 (γR)\gamma\partial_t+\partial_x^4\ (\gamma\in\mathbb{R}). We obtain two kinds of Carleman estimates with different weight functions, i.e. singular weight function and regular weight function, respectively. Based on Carleman estimate with singular weight function, one can obtain the known controllability and observability results for the 1-d fourth order parabolic-type equation, while based on Carleman estimate with regular weight function, one can deduce not only the known result on conditional stability in the inverse problem of half-order fractional diffusion equation, but also a new result on conditional stability in the inverse problem of half-order fractional Schr\"odinger equation.

Keywords

Cite

@article{arxiv.2112.01861,
  title  = {Matlab program method of computing Carleman estimates and applications},
  author = {Xiaoyu Fu and Yuan Gao and Qingmei Zhao},
  journal= {arXiv preprint arXiv:2112.01861},
  year   = {2021}
}
R2 v1 2026-06-24T08:03:02.743Z