Realizing Countable Groups As Automorphism Groups of Riemann Surfaces
Every countable group can be realized as the full automorphism group of a Riemann surface as well as the full group of isometries of a Riemannian manifold.
2000 Mathematics Subject Classification: Primary 30F99, Secondary 20F29,20B27,32M05
Keywords and Phrases: Countable Groups, Full automorphism group, Riemann surface
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