16 citations · 91 across the 26 of their papers we have counts for
4 papers · 1 filter
A short remark on the surjectivity of the combinatorial Laplacian on infinite graphs
Thomas Kalmes
Applying a well-known theorem due to Eidelheit, we give a short proof of the surjectivity of the combinatorial Laplacian on connected locally finite undirected simplicial graph …
A remark on the frequent hypercyclicity criterion for weighted composition semigroups and an application to the linear von Foerster-Lasota equation
Thomas Kalmes
We generalize a result for the translation -semigroup on about the equivalence of being chaotic and satisfying the Frequent Hypercyclicity criterion due to Mangi…
A simple characterization of chaos for weighted composition -semigroups on Lebesgue and Sobolev spaces
Thomas Kalmes
We give a simple characterization of chaos for weighted composition -semigroups on for an open interval . Moreover, we characterize chaos for…
Surjectivity of differential operators and linear topological invariants for spaces of zero solutions
Thomas Kalmes
We provide a sufficient condition for a linear differential operator with constant coefficients to be surjective on and , respectively, where…