Are there applications of modular forms to areas other than Number Theory (and Galois Theory) such as Combinatorics, Algebraic Topology, Algebraic Geometry, Theoretical Physics,...?
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closed as not a real question by HJRW, Andy Putman, Ryan Budney, Pete L. Clark, Yemon Choi Oct 7 '10 at 5:19
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.
I am by no means an expert, in fact I don't really know what a modular form is! But yes. Wikipedia, http://en.wikipedia.org/wiki/Category:Modular_forms or if you want more, :) You may want to try asking a more specific question if there's something you've been wondering about. Otherwise is seems a bit too vague to really address here. 

