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arXiv · 2007.11822

A note on generalized fractional diffusion equations on Poincar\`e half plane

R. Garra·F. Maltese·E. Orsingher
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Abstract

In this paper we study generalized time-fractional diffusion equations on the Poincar\`e half plane $\mathbb{H}_2^+$. The time-fractional operators here considered are fractional derivatives of a function with respect to another function, that can be obtained by starting from the classical Caputo-derivatives essentially by means of a deterministic change of variable. We obtain an explicit representation of the fundamental solution of the generalized-diffusion equation on $\mathbb{H}_2^+$ and provide a probabilistic interpretation related to the time-changed hyperbolic Brownian motion. We finally include an explicit result regarding the non-linear case admitting a separating variable solution.

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R. Garra, F. Maltese, E. Orsingher. 2020-07-23. A note on generalized fractional diffusion equations on Poincar\`e half plane. https://arxiv.org/abs/2007.11822

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