Papamikos, Georgios and Pryer, Tristan (2019) 'A Lie symmetry analysis and explicit solutions of the two-dimensional ∞-Polylaplacian.' Studies in Applied Mathematics, 142 (1). 48 - 64. ISSN 0022-2526

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Abstract

In this work, we consider the Lie point symmetry analysis of a strongly nonlinear partial differential equation of third order, the ∞‐Polylaplacian, in two spatial dimensions. This equation is a higher order generalization of the ∞‐Laplacian, also known as Aronsson's equation, and arises as the analog of the Euler–Lagrange equations of a second‐order variational principle in L∞. We obtain its full symmetry group, one‐dimensional Lie subalgebras and the corresponding symmetry reductions to ordinary differential equations. Finally, we use the Lie symmetries to construct new invariant ∞‐Polyharmonic functions.

Item Type:	Article
Divisions:	Faculty of Science and Health > Mathematical Sciences, Department of
Depositing User:	Elements
Date Deposited:	05 Nov 2020 13:30
Last Modified:	05 Nov 2020 13:30
URI:	http://repository.essex.ac.uk/id/eprint/26459

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