E. Rydhe

activity

20162026

m

-isometries, and Dirichlet type spaces

8 citations · 14 across the 8 of their papers we have counts for

collaborators

Showing 2018Show all

2 papers · 1 filter

math.FA2018

On $m$ -isometric semigroups, and $2$ -isometric cogenerators

Eskil Rydhe

It is known that a $C_{0}$ -semigroup of Hilbert space operators is $m$ -isometric if and only if its generator satisfies a certain condition, which we choose to call $m$ -skew-symmetry…

math.FA2018★ 8 cited

Cyclic $m$ -isometries, and Dirichlet type spaces

Eskil Rydhe

We consider cyclic $m$ -isometries on a complex separable Hilbert space. Such operators are characterized in terms of shifts on abstract spaces of weighted Dirichlet type. Our resul…

On m-isometric semigroups, and 2-isometric cogenerators

Cyclic m-isometries, and Dirichlet type spaces

On $m$ -isometric semigroups, and $2$ -isometric cogenerators

Cyclic $m$ -isometries, and Dirichlet type spaces