Opened 5 years ago

Closed 5 years ago

#19668 closed enhancement (fixed)

Symmetric square L-functions for modular forms

Reported by: davidloeffler Owned by:
Priority: major Milestone: sage-6.10
Component: modular forms Keywords:
Cc: mraum Merged in:
Authors: Martin Raum, David Loeffler Reviewers: Marc Masdeu
Report Upstream: N/A Work issues:
Branch: 376cc2f (Commits, GitHub, GitLab) Commit: 376cc2f133e40d324341368fbe2ab364decf649f
Dependencies: Stopgaps:

Status badges

Description

Martin Raum has ​posted on sage-nt code for computing the symmetric square L-functions of (level 1) modular forms. The goal of this ticket is to get Martin's code into Sage.

Change History (13)

comment:1 Changed 5 years ago by davidloeffler

  • Branch set to u/davidloeffler/symmetric_square_l_functions_for_modular_forms

comment:2 Changed 5 years ago by davidloeffler

  • Cc mraum added
  • Commit set to a498b436bbadc55c4dc897a2738dc599f8bbae52
  • Status changed from new to needs_review

New commits:

​a498b43Trac 19668: Symmetric square L-functions for modular forms

comment:3 Changed 5 years ago by davidloeffler

  • Status changed from needs_review to needs_work

Oops, I forgot to run long doctests, and one of them is failing on the patchbot.

comment:4 Changed 5 years ago by git

  • Commit changed from a498b436bbadc55c4dc897a2738dc599f8bbae52 to 0cd82a6fb8af46f0fcd8ae2597465ba248299e55

Branch pushed to git repo; I updated commit sha1. New commits:

​0cd82a6Trac 19669: fix a broken doctest

comment:5 Changed 5 years ago by davidloeffler

That's better. This is now ready for review. (The code should work for certain higher-level forms -- trivial character and squarefree level should be OK -- but that can come in a subsequent ticket; for now it just raises NotImplementedError? if the level isn't 1.)

comment:6 Changed 5 years ago by davidloeffler

  • Status changed from needs_work to needs_review

comment:7 Changed 5 years ago by git

  • Commit changed from 0cd82a6fb8af46f0fcd8ae2597465ba248299e55 to 9ba1341fb37732129e6124daa50b066251b23107

Branch pushed to git repo; I updated commit sha1. New commits:

​9ba1341Trac 19668: remove deprecated "raise" syntax

comment:8 Changed 5 years ago by davidloeffler

One of the patchbot plugins spotted that I had used the old-style, deprecated raise Exception, "message" syntax rather than raise Exception("message"), so here's a tiny patch fixing this.

comment:9 Changed 5 years ago by davidloeffler

  • Branch changed from u/davidloeffler/symmetric_square_l_functions_for_modular_forms to public/19668-symsquare

comment:10 Changed 5 years ago by davidloeffler

  • Commit changed from 9ba1341fb37732129e6124daa50b066251b23107 to 5066faf17dc1a3762bbc841953d866c802b18df1

I noticed that one of the commits had the wrong ticket number in the docstring, so I rewrote the history using "git rebase". The new branch has a single commit, with the correct ticket number; the code is identical to the previously-uploaded branch.

New commits:

​5066fafTrac 19668: Symmetric square L-functions for modular forms

comment:11 Changed 5 years ago by git

  • Commit changed from 5066faf17dc1a3762bbc841953d866c802b18df1 to 376cc2f133e40d324341368fbe2ab364decf649f

Branch pushed to git repo; I updated commit sha1. New commits:

​376cc2fTrac #19668: review patch - removed superfluous whitespace, minor edits.

comment:12 Changed 5 years ago by mmasdeu

  • Reviewers set to Marc Masdeu
  • Status changed from needs_review to positive_review

The implementation looks clean and correct.

I checked that some output was consistent with what is returned from Magma.

It would be worth having a more general implementation (including arbitrary powers, too?). But it's better than nothing, so I'm giving a positive review.

comment:13 Changed 5 years ago by vbraun

  • Branch changed from public/19668-symsquare to 376cc2f133e40d324341368fbe2ab364decf649f
  • Resolution set to fixed
  • Status changed from positive_review to closed
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