English

Some free entropy dimension inequalities for subfactors

Operator Algebras 2007-05-23 v1

Abstract

Suppose NMN \subset M is an inclusion of II1II_1-factors of finite index. If NN can be generated by a finite set of elements, then there exist finite generating sets XX for NN and YY for MM such that δ0(X)δ0(Y)\delta_0(X) \geq \delta_0(Y), where δ0\delta_0 denotes Voiculescu's microstates (modified) free entropy dimension. Moreover given ϵ>0\epsilon >0 one has δ0(F)δ0(G)([M:N]2ϵ)(δ0(F)1)+1ϵ\delta_0(F) \geq \delta_0(G) \geq ([M:N]^{-2} -\epsilon) \cdot (\delta_0(F) -1) + 1 - \epsilon for certain generating sets FF for NN and GG for MM.

Keywords

Cite

@article{arxiv.math/0410594,
  title  = {Some free entropy dimension inequalities for subfactors},
  author = {Kenley Jung},
  journal= {arXiv preprint arXiv:math/0410594},
  year   = {2007}
}

Comments

11 pages

R2 v1 2026-07-22T17:11:42.655Z