Generalization of nonlocally related partial differential equation systems: unknown symmetric properties and analytical solutions
Abstract
Symmetry, which describes invariance, is an eternal concern in mathematics and physics, especially in the investigation of solutions to the partial differential equation (PDE). A PDE's nonlocally related PDE systems provide excellent approaches to search for various symmetries that expand the range of its known solutions. They composed of potential systems based on conservation laws and inverse potential systems (IPS) based on differential invariants. Our study is devoted to generalizing their construction and application in three-dimensional circumstances. Concretely, the potential of the algebraic gauge-constrained potential system is simplified without weakening its solution space. The potential system is extended via nonlocal conservation laws and double reductions. Afterwards, nonlocal symmetries are identified in the IPS.\@ The IPS is extended by the solvable Lie algebra and type \Rmnum{2} hidden symmetries. Besides, systems among equations can be connected via Cole-Hopf transformation.\@ Ultimately, established and extended systems embody rich symmetric properties and unprecedented analytical solutions, and may even further facilitate general coordinate-independent analysis in qualitative, numerical, perturbation, etc., this can be illustrated by several Burgers-type equations.
Keywords
Cite
@article{arxiv.2401.14795,
title = {Generalization of nonlocally related partial differential equation systems: unknown symmetric properties and analytical solutions},
author = {Huanjin Wang and Qiulan Zhao and Xinyue Li},
journal= {arXiv preprint arXiv:2401.14795},
year = {2025}
}
Comments
This article has undergone numerous major revisions and improvements and has undergone significant changes. It is requested to be withdrawn!