Non-commutative Factor theorem for tensor products of lattices in product groups
Operator Algebras
2026-01-16 v1 Dynamical Systems
Functional Analysis
Abstract
We establish a non-commutative version of the Intermediate Factor Theorem for crossed products associated with product lattices. Given an irreducible lattice in higher rank semisimple algebraic groups and a trace-preserving irreducible action , we show that every intermediate von Neumann algebra between and is again a crossed product of the form .
Keywords
Cite
@article{arxiv.2601.09875,
title = {Non-commutative Factor theorem for tensor products of lattices in product groups},
author = {Tattwamasi Amrutam and Yongle Jiang and Shuoxing Zhou},
journal= {arXiv preprint arXiv:2601.09875},
year = {2026}
}
Comments
14 pages; comments are welcome