24 citations · 80 across the 39 of their papers we have counts for
Showing 2018Show all
2 papers · 1 filter
math.FA2018
Complete systems of unitary invariants for some classes of -isometries
Akash Anand, Sameer Chavan, Zenon Jan Jabłoński +1
The unitary equivalence of -isometric operators satisfying the so-called kernel condition is characterized. It relies on a model for such operators built on operator valued unil…
math.FA2018
The complex moment problem: determinacy and extendibility
D. Cichoń, J. Stochel. F. H. Szafraniec
Complex moment sequences are exactly those which admit positive definite extensions on the integer lattice points of the upper diagonal half-plane. Here we prove that the aforesaid…