Weighted Caffarelli-Kohn-Nirenberg type inequalities related to Grushin type operators

TL;DR

This paper establishes new weighted inequalities of Hardy-Sobolev and Caffarelli-Kohn-Nirenberg types for a class of Grushin operators, extending classical inequalities to a degenerate differential operator setting.

Contribution

The work introduces weighted inequalities related to Grushin operators, broadening the scope of functional inequalities in degenerate and subelliptic contexts.

Findings

Derived weighted Hardy-Sobolev inequalities for Grushin operators

Established weighted Caffarelli-Kohn-Nirenberg inequalities in this setting

Extended classical inequalities to degenerate differential operators

Abstract

We consider the Grushin type operator on $\mathbb{R}^{d}_x \times \mathbb{R}^{k}_y$ with the form \begin{equation*} G_\mu=\overset{d}{\underset{i=1}{\sum}}\partial_{x_i}^2+\left(\overset{d}{\underset{i=1}{\sum}}x_i^2\right)^{2\mu}\overset{k}{\underset{j=1}{\sum}}\partial_{y_j}^2. \end{equation*} and derive weighted Hardy-Sobolev type inequalities and weighted Caffarelli-Kohn-Nirenberg type inequalities related to $G_\mu$.