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math.FA2016
Some Representation Theorems for Sesquilinear Forms
Salvatore Di Bella, Camillo Trapani
The possibility of getting a Radon-Nikodym type theorem and a Lebesgue-like decomposition for a non necessarily positive sesquilinear form defined on a vector space $\mathcal D…
math.FA2013
Operators in Rigged Hilbert spaces: some spectral properties
G. Bellomonte, S. Di Bella, C. Trapani
A notion of resolvent set for an operator acting in a rigged Hilbert space $\D \subset \H\subset \D^\times$ is proposed. This set depends on a family of intermediate locally convex…