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2015

2015

Abstract We examine the ranks of operators in semi-finite ${{C}^{*}}$ -algebras as measured by their densely defined lower…

Highly Cited

2014

Highly Cited

2014

The Cuntz semigroup of a C*-algebra is an important invariant in the structure and classification theory of C*-algebras. It…

Highly Cited

2011

Highly Cited

2011

2011

2011

AbstractIn this paper, we show the hierarchical convergence of the following implicit double-net algorithm:
xs,t=s[tf(xs,t)+(1-t…

Highly Cited

2007

Highly Cited

2003

Highly Cited

2003

In these notes we report on recent progress in the theory of hypercyclic and chaotic operators. Our discussion will be guided by…

Highly Cited

1997

Highly Cited

1997

— Let D be domain in a complex Banach space X, and let Q be a pseudometric assigned to D by a Schwarz-Pick system. In the first…

1994

1994

A complete description of ultrarepetitive semigroups is given. As an application of this result all semigroups S are described…

Highly Cited

1952

Highly Cited

1952