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math.NA2026
Korovkin type theorems for operators acting on functions of polynomial and exponential growth on
Ulrich Abel, Ana-Maria Acu, Margareta Heilmann +1
We prove two Korovkin-type approximation theorems for sequences of positive linear operators acting on continuous functions on . Under the assumption of pointwise conve…
math.NA2024
Commutativity and spectral properties for a general class of Szasz-Mirakjan-Durrmeyer operators
Ulrich Abel, Ana Maria Acu, Margareta Heilmann +1
In this paper we present commutativity results for a general class of Szasz-Mirakjan-Durrmeyer type operators and associated differential operators and investigate their eigenfunct…