Published online by Cambridge University Press: 20 November 2018
Let ${{T}_{\Omega }}$ be the singular integral operator with kernel
$\left( \Omega \left( x \right) \right)/{{\left| x \right|}^{n}}$, where
$\Omega $ is homogeneous of degree zero, has mean value zero, and belongs to
${{L}^{q}}\left( {{S}^{n-1}} \right)$ for some
$q\,\in \,\left( 1,\,\infty \right]$. In this paper, the authors establish the compactness on weighted
${{L}^{p}}$ spaces and the Morrey spaces, for the commutator generated by
$\text{CMO}\left( {{\mathbb{R}}^{n}} \right)$ function and
${{T}_{\Omega }}$. The associated maximal operator and the discrete maximal operator are also considered.