English

Some new equivalences of Anderson's paving conjectures

Operator Algebras 2007-11-15 v2

Abstract

Anderson's paving conjectures are known to be equivalent to the Kadison-Singer problem. We prove some new equivalences of Anderson's conjectures that require the paving of smaller sets of matrices. We prove that if the strictly upper triangular operatorss are pavable, then every 0 diagonal operator is pavable. This result follows from a new paving condition for positive operators. In addition, we prove that if the upper triangular Toeplitz operators are paveable, then all Toeplitz operators are paveable.

Keywords

Cite

@article{arxiv.0706.2644,
  title  = {Some new equivalences of Anderson's paving conjectures},
  author = {Vern I. Paulsen and Mrinal Raghupathi},
  journal= {arXiv preprint arXiv:0706.2644},
  year   = {2007}
}

Comments

Typos corrected, references added