4 citations · 9 across the 4 of their papers we have counts for
5 papers
Disjoint universality connected with differential operators
Vagia Vlachou
In this article, we study disjoint universality for certain sequences of operators, that are connected with the differential operator. Actually, the motivation to study such sequen…
Subclasses of Universal Taylor Series and center independence
Vagia Vlachou
A holomorphic function f on a simply connected domain belongs to a subclass of universal Taylor series if prescribed and infinite number of partial sums of the Taylor expansion…
Disjoint Hypercyclicity for families of Taylor-type Operators
Vagia Vlachou
We give necessary and sufficient condition so that we have d-hypercyclicity for operators who map a holomorphic function to a partial sum of the Taylor expansion. This problem is c…
Doubly universal Taylor Series on simply connected domains
N. Chatzigiannakidou, V. Vlachou
In this article we deal with the existence of doubly universal Taylor series defined on simply connected domains with respect to any center and we generalize the results of G. Cost…
Non-existence of common hypercyclic entire functions for certain families of translation operators
George Costakis, Nikos Tsirivas, Vagia Vlachou
We show that families of translation operators, where the translates grow exponentially fast, do not admit common hypercyclic functions. The result is close to be optimal.