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Commutation properties of the form sum of positive, symmetric operators

Balint Farkas, Mate Matolcsi

math.FAarXiv:math/0612014

Abstract

A new construction for the form sum of positive, selfadjoint operators is given in this paper. The situation is a bit more general, because our aim is to add positive, symmetric operators. With the help of the used method, some commutation properties of the form sum extension are observed.

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