Satoshi Ishiwata

activity

20122026

most citedCentral limit theorems for non-symmetric random walks on nilpotent covering graphs: Part I

10 citations · 16 across the 8 of their papers we have counts for

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Showing 2022Show all

2 papers · 1 filter

math.FA2022★ 1 cited

A graph discretized approximation of semigroups for diffusion with drift and killing on a complete Riemannian manifold

Satoshi Ishiwata, Hiroshi Kawabi

In the present paper, we prove that the $C_{0}$ -semigroup generated by a Schrödinger operator with drift on a complete Riemannian manifold is approximated by the discrete semigroup…

math.DG2022

Poincaré constant on manifolds with ends

Alexander Grigor'yan, Satoshi Ishiwata, Laurent Saloff-Coste

We obtain optimal estimates of the Poincaré constant of central balls on manifolds with finitely many ends. Surprisingly enough, the Poincaré constant is determined by the second l…