2 papers
math.FA2020
Generalized Harmonic Functions on Trees: Universality and Frequent Universality
N. Biehler, E. Nestoridi, V. Nestoridis
Recently, harmonic functions and frequently universal harmonic functions on a tree have been studied, taking values on a separable Fréchet space over the field …
math.FA2019
Algebraic genericity of frequently universal harmonic functions on trees
N. Biehler, V. Nestoridis, A. Stavrianidi
We show that the set of frequently universal harmonic functions on a tree T contains a vector space except 0 which is dense in the space of harmonic functions on T seen as subset o…