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- W4307410851 abstract "The goal of this work is to introduce and investigate a generalised Fisher Information in the setting of linear Fokker-Planck equations. This functional, which depends on two functions instead of one, exhibits the same decay behaviour as the standard Fisher information, and allows us to investigate different parts of the Fokker-Planck solution via an appropriate decomposition. Focusing almost exclusively on Fokker-Planck equations with constant drift and diffusion matrices, we will use a modification of the well established Bakry-Emery method with this newly defined functional to conclude the sharp long time behaviour of relative entropies of solutions to such equations when the diffusion matrix is positive definite and the drift matrix is defective. This novel approach is different to previous techniques, such as those presented in the authors' previous work, which relied heavily on spectral theory." @default.
- W4307410851 created "2022-11-01" @default.
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- W4307410851 date "2022-10-25" @default.
- W4307410851 modified "2023-09-28" @default.
- W4307410851 title "Generalised Fisher Information Approach to Defective Fokker-Planck Equations" @default.
- W4307410851 doi "https://doi.org/10.48550/arxiv.2210.14033" @default.
- W4307410851 hasPublicationYear "2022" @default.
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