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Main Authors: Alonso, Ricardo, Gualdani, Maria Pia, Sun, Weiran
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2506.20775
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author Alonso, Ricardo
Gualdani, Maria Pia
Sun, Weiran
author_facet Alonso, Ricardo
Gualdani, Maria Pia
Sun, Weiran
contents We introduce an $\mathcal{M}$-operator approach to establish the uniqueness of continuous or bounded solutions for a broad class of Landau-type nonlinear kinetic equations. The specific $\mathcal{M}$-operator, originally developed in [3], acts as a negative fractional derivative in both spatial and velocity variables and interacts in a controllable manner with the kinetic transport operator. The novelty of this method is that it bypasses the need for bounds on the derivatives of the solution - an assumption typically required in uniqueness arguments for non-cutoff equations. As a result, the method enables working with solutions with low regularity.
format Preprint
id arxiv_https___arxiv_org_abs_2506_20775
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The $\mathcal{M}$-Operator and Uniqueness of Nonlinear Kinetic Equations
Alonso, Ricardo
Gualdani, Maria Pia
Sun, Weiran
Analysis of PDEs
We introduce an $\mathcal{M}$-operator approach to establish the uniqueness of continuous or bounded solutions for a broad class of Landau-type nonlinear kinetic equations. The specific $\mathcal{M}$-operator, originally developed in [3], acts as a negative fractional derivative in both spatial and velocity variables and interacts in a controllable manner with the kinetic transport operator. The novelty of this method is that it bypasses the need for bounds on the derivatives of the solution - an assumption typically required in uniqueness arguments for non-cutoff equations. As a result, the method enables working with solutions with low regularity.
title The $\mathcal{M}$-Operator and Uniqueness of Nonlinear Kinetic Equations
topic Analysis of PDEs
url https://arxiv.org/abs/2506.20775