Functions of triples of noncommuting self-adjoint operators and their perturbations
arXiv:1606.08961
Abstract
In this paper we study properties of functions of triples of not necessarily commuting self-adjoint operators. The main result of the paper shows that unlike in the case of functions of pairs of self-adjoint operators there is no Lipschitz type estimates in the trace norm for arbitrary functions in the Besov class .
10 pages