activity
20192025
most citedLi-Yau and Harnack inequalities via curvature-dimension conditions for discrete long-range jump operators including the fractional discrete Laplacian

1 citations · 1 across the 6 of their papers we have counts for

collaborators

7 papers

cs.LG2025

Mathematical analysis of the gradients in deep learning

Steffen Dereich, Thang Do, Arnulf Jentzen +1

Deep learning algorithms -- typically consisting of a class of deep artificial neural networks (ANNs) trained by a stochastic gradient descent (SGD) optimization method -- are nowa…

math.AP2022★ 1 cited

Li-Yau and Harnack inequalities via curvature-dimension conditions for discrete long-range jump operators including the fractional discrete Laplacian

Sebastian Kräss, Frederic Weber, Rico Zacher

We consider operators of the form on the one-dimensional lattice with symmetric, integrable kernel . We prove se…

math.AP2020

Li-Yau inequalities for general non-local diffusion equations via reduction to the heat kernel

Frederic Weber, Rico Zacher

We establish a reduction principle to derive Li-Yau inequalities for non-local diffusion problems in a very general framework, which covers both the discrete and continuous setting…

math.PR2020

Entropy-information inequalities under curvature-dimension conditions for continuous-time Markov chains

Frederic Weber

In the setting of reversible continuous-time Markov chains, the condition has been shown recently to be a consistent analogue to the Bakry-Émery condition in the diffusive s…

math.PR2020

The entropy method under curvature-dimension conditions in the spirit of Bakry-Émery in the discrete setting of Markov chains

Frederic Weber, Rico Zacher

We consider continuous-time (not necessarily finite) Markov chains on discrete spaces and identify a curvature-dimension inequality, the condition , which serves as…

math.AP2019

The Fractional Laplacian has Infinite Dimension

Adrian Spener, Frederic Weber, Rico Zacher

We show that the fractional Laplacian on fails to satisfy the Bakry-Émery curvature-dimension inequality for all curvature bounds and all…