Positive harmonic functions on abelian covers (Q1825995)

From MaRDI portal





scientific article; zbMATH DE number 4122309
Language Label Description Also known as
English
Positive harmonic functions on abelian covers
scientific article; zbMATH DE number 4122309

    Statements

    Positive harmonic functions on abelian covers (English)
    0 references
    0 references
    1989
    0 references
    The existence of positive harmonic functions and Green's functions on certain Abelian covers of non-compact, finite volume Riemann surfaces is shown. These results are obtained by studying the asymptotic distribution of the lattice in hyperbolic space generated by the fundamental group of the covering surface. They extend considerations by \textit{T.Lyons} and \textit{D. Sullivan} [J. Differ. Geom. 19, 299-323 (1984; Zbl 0554.58022)] on covers of compact Riemann surfaces using the theory of Brownian motion.
    0 references
    Green's functions
    0 references
    hyperbolic space
    0 references
    positive harmonic functions
    0 references
    lattice
    0 references

    Identifiers