Displaying similar documents to “Isoperimetric inequalities and Dirichlet functions of Riemann surfaces.”

Two remarks on Riemann surfaces.

José M. Rodriguez (1994)

Publicacions Matemàtiques

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We study the relationship between linear isoperimetric inequalities and the existence of non-constant positive harmonic functions on Riemann surfaces. We also study the relationship between growth conditions of length of spheres and the existence and the existence of Green's function on Riemann surfaces.

Isospectral Riemann surfaces

Peter Buser (1986)

Annales de l'institut Fourier

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We construct new examples of compact Riemann surfaces which are non isometric but have the same spectrum of the Laplacian. Examples are given for genus g = 5 and for all g 7 . In a second part we give examples of isospectral non isometric surfaces in R 3 which are realizable by paper models.