Sharp dispersive estimates for the wave equation on the 5-dimensional lattice graph

Fuente: arXiv
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Autores principales: Bi, Cheng, Cheng, Jiawei, Hua, Bobo
Formato: Preprint
Publicado: 2024
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author Bi, Cheng
Cheng, Jiawei
Hua, Bobo
author_facet Bi, Cheng
Cheng, Jiawei
Hua, Bobo
contents Schultz \cite{S98} proved dispersive estimates for the wave equation on lattice graphs $\mathbb{Z}^d$ for $d=2,3,$ which was extended to $d=4$ in \cite{BCH23}. By Newton polyhedra and the algorithm introduced by Karpushkin \cite{K83}, we further extend the result to $d=5:$ the sharp decay rate of the fundamental solution of the wave equation on $\mathbb{Z}^5$ is $|t|^{-\frac{11}{6}}.$ Moreover, we prove Strichartz estimates and give applications to nonlinear equations.
format Preprint
id arxiv_https___arxiv_org_abs_2406_00949
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Sharp dispersive estimates for the wave equation on the 5-dimensional lattice graph
Bi, Cheng
Cheng, Jiawei
Hua, Bobo
Analysis of PDEs
Schultz \cite{S98} proved dispersive estimates for the wave equation on lattice graphs $\mathbb{Z}^d$ for $d=2,3,$ which was extended to $d=4$ in \cite{BCH23}. By Newton polyhedra and the algorithm introduced by Karpushkin \cite{K83}, we further extend the result to $d=5:$ the sharp decay rate of the fundamental solution of the wave equation on $\mathbb{Z}^5$ is $|t|^{-\frac{11}{6}}.$ Moreover, we prove Strichartz estimates and give applications to nonlinear equations.
title Sharp dispersive estimates for the wave equation on the 5-dimensional lattice graph
topic Analysis of PDEs
url https://arxiv.org/abs/2406.00949