On the Canonical Calkin Reduction Operator Perch Melik-Adamyan
The topic of discussion here is the reduction operator of Calkin and his methodof extensions of a Hermitian operator, variant from the von Neumann theory. Anexistence of a partial isometric reduction operator is established, which providesa link between these theories, and referred to as the canonical reduction operator.Concrete realization of discussed is applied to a canonical differential operator.
DOI: https://armjmath.sci.am/index.php/ajm/article/view/98 Armenian Journal of Mathematics, 6(1) 16-31
