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  • Algebraic genericity of fre...
    Biehler, N.; Nestoridis, V.; Stavrianidi, A.

    Journal of mathematical analysis and applications, 09/2020, Volume: 489, Issue: 1
    Journal Article

    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 of CT. In order to prove this we replace the complex plane C by any separable Fréchet space E and we repeat all the theory.