References & Citations
Mathematics > Analysis of PDEs
Title: Logarithmic convexity of non-symmetric time-fractional diffusion equations
(Submitted on 22 Apr 2024)
Abstract: We consider a class of diffusion equations with the Caputo time-fractional derivative $\partial_t^\alpha u=L u$ subject to the homogeneous Dirichlet boundary conditions. Here, we consider a fractional order $0<\alpha < 1$ and a second-order operator $L$ which is elliptic and non-symmetric. In this paper, we show that the logarithmic convexity extends to this non-symmetric case provided that the drift coefficient is given by a gradient vector field. Next, we perform some numerical experiments to validate the theoretical results in both symmetric and non-symmetric cases. Finally, some conclusions and open problems will be mentioned.
Submission history
From: Salah-Eddine Chorfi [view email][v1] Mon, 22 Apr 2024 10:02:00 GMT (995kb,D)
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