The well-posedness of generalized nonlinear wave equations on the lattice graph

Fuente: arXiv
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Autori principali: Hua, Bobo, Wang, Jiajun
Natura: Preprint
Pubblicazione: 2024
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author Hua, Bobo
Wang, Jiajun
author_facet Hua, Bobo
Wang, Jiajun
contents In this paper, we introduce a novel first-order derivative for functions on a lattice graph, and establish its weak (1, 1) estimate as well as strong (p, p) estimate for p > 1 in weighted spaces. This derivative is designed to reconstruct the discrete Laplacian, enabling an extension of the theory of nonlinear wave equations, including quasilinear wave equations, to lattice graphs. We prove the local well-posedness of generalized quasilinear wave equations and the long-time well-posedness of these equations for small initial data. Furthermore, we prove the global well-posedness of defocusing semilinear wave equations for large initial data.
format Preprint
id arxiv_https___arxiv_org_abs_2407_09815
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The well-posedness of generalized nonlinear wave equations on the lattice graph
Hua, Bobo
Wang, Jiajun
Analysis of PDEs
In this paper, we introduce a novel first-order derivative for functions on a lattice graph, and establish its weak (1, 1) estimate as well as strong (p, p) estimate for p > 1 in weighted spaces. This derivative is designed to reconstruct the discrete Laplacian, enabling an extension of the theory of nonlinear wave equations, including quasilinear wave equations, to lattice graphs. We prove the local well-posedness of generalized quasilinear wave equations and the long-time well-posedness of these equations for small initial data. Furthermore, we prove the global well-posedness of defocusing semilinear wave equations for large initial data.
title The well-posedness of generalized nonlinear wave equations on the lattice graph
topic Analysis of PDEs
url https://arxiv.org/abs/2407.09815