Take the 2-minute tour ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

Suppose one was given a sequence and $a_{0}, a_{1}, a_{2}, \ldots$. Is there a searchable database somewhere to see if $a_{0} + a_{1}q + a_{2}q^{2} + \cdots$ is expressible as modular form (or some product of modular forms, etc.)?

share|improve this question
    
Have you looked at modular.math.washington.edu/Tables ? I'm not really familiar with this reference, but it looks relevant. –  David Speyer Jun 11 '11 at 21:47
    
I asked this once. I don't remember exactly how I phrased it, so this answer might not be true. I was told that unless I really had infinitely many coefficients I couldn't tell. If you can pin down a weight and level (maybe only one of those is needed), this is what allows you to only have to check a finite number of coefficients. –  Matt Jun 17 '12 at 15:53
add comment

1 Answer 1

up vote 3 down vote accepted

There are two databases that contain some known modular forms. One is Stein's and this is the other.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.