Regularity of Viscosity Solutions of the Biased Infinity Laplacian Equation

Regularity of Viscosity Solutions of the Biased Infinity Laplacian Equation

Year:    2022

Author:    Fang Liu, Fei Meng, Xiaoyan Chen

Analysis in Theory and Applications, Vol. 38 (2022), Iss. 4 : pp. 439–450

Abstract

In this paper, we are interested in the regularity estimates of the nonnegative viscosity super solution of the $β$−biased infinity Laplacian equation $$∆^β_∞u = 0,$$ where $β ∈ \mathbb{R}$ is a fixed constant and $∆^β_∞u := ∆^N_∞u + β|Du|,$ which arises from the random game named biased tug-of-war. By studying directly the $β$−biased infinity Laplacian equation, we construct the appropriate exponential cones as barrier functions to establish a key estimate. Based on this estimate, we obtain the Harnack inequality, Hopf boundary point lemma, Lipschitz estimate and the Liouville property etc.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/ata.OA-2020-0002

Analysis in Theory and Applications, Vol. 38 (2022), Iss. 4 : pp. 439–450

Published online:    2022-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    12

Keywords:    $β$−biased infinity Laplacian viscosity solution exponential cone Harnack inequality Lipschitz regularity.

Author Details

Fang Liu

Fei Meng

Xiaoyan Chen