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# John Voight : Presentations for rings of modular forms

We give an explicit presentation for the ring of modular forms for a Fuchsian group with cofinite area, depending on the signature of the group. Our work can be seen as a generalization of the classical theorem of Petri: we give a presentation for the canonical ring of a stacky curve. This is joint work with David Zureick-Brown.

**Category**: Number Theory**Duration**: 01:34:47**Date**: April 15, 2015 at 1:25 PM**Views**: 112-
**Tags:**seminar, UNC-Duke Number Theory Seminar

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