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Implement restriction #64

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jvoight opened this issue Apr 28, 2019 · 2 comments
Open

Implement restriction #64

jvoight opened this issue Apr 28, 2019 · 2 comments

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@jvoight
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jvoight commented Apr 28, 2019

Given an HMF over F, you can restrict that HMF to another HMF over any subfield F_0; for example, you can restrict an HMF over a real quadratic field to get a classical modular form (over QQ). [Sam Tripp is restricting Siegel modular forms to get HMFs, so we might as well continue!] This is a very good sanity check for various computations, because I think it is even a ring homomorphism!
@abhijit-mudigonda
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@juanitaduquer I think you've implemented this, so can we close this issue?

@juanitaduquer
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Restriction to the diagonal is the only one that is implemented. I am working on extending this to HZ-divisors, so maybe we can wait until that is done?

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@jvoight @abhijit-mudigonda @juanitaduquer