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A Unique Prime Decomposition Result for Wreath Product Factors

Operator Algebras 2016-01-20 v2

Abstract

We use malleable deformations combined with spectral gap rigidity theory, in the framework of Popa's deformation/rigidity theory to prove unique tensor product decomposition results for II1_1 factors arising as tensor product of wreath product factors. We also obtain a similar result regarding measure equivalence decomposition of direct products of such groups.

Keywords

Cite

@article{arxiv.1110.3389,
  title  = {A Unique Prime Decomposition Result for Wreath Product Factors},
  author = {James Owen Sizemore and Adam Winchester},
  journal= {arXiv preprint arXiv:1110.3389},
  year   = {2016}
}

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8 pages