59 citations · 154 across the 25 of their papers we have counts for
Showing 2008Show all
2 papers · 1 filter
math.FA2008★ 1 cited
Riesz basis for strongly continuous groups
Hans Zwart
Given a Hilbert space and the generator of a strongly continuous group on this Hilbert space. If the eigenvalues of the generator have a uniform gap, and if the span of the corresp…
math.FA2008
The growth of a C_0-semigroup characterised by its cogenerator
Tanja Eisner, Hans Zwart
We characterise contractivity, boundedness and polynomial boundedness for a C_0-semigroup on a Banach space in terms of its cogenerator V (or the Cayley transform of the generator)…