16 citations · 42 across the 15 of their papers we have counts for
Showing math.CAShow all
2 papers · 1 filter
math.CA2023
Nuclearity and Grothendieck-Lidskii formula for quaternionic operators
Paula Cerejeiras, Fabrizio Colombo, Alberto Debernardi Pinos +2
We introduce an appropriate notion of trace in the setting of quaternionic linear operators, arising from the well-known companion matrices. We then use this notion to define the q…
math.CA2014★ 1 cited
Lower bounds for the approximation with variation-diminishing splines
Johannes Nagler, Paula Cerejeiras, Brigitte Forster
We prove lower bounds for the approximation error of the variation-diminishing Schoenberg operator on the interval in terms of classical moduli of smoothness depending on t…