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dimensions of modular forms spaces for Gamma(N) is slow #6860

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williamstein opened this issue Sep 2, 2009 · 9 comments
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dimensions of modular forms spaces for Gamma(N) is slow #6860

williamstein opened this issue Sep 2, 2009 · 9 comments
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c: modular forms r: duplicate t: bug

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@williamstein
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sage: dimension_cusp_forms(Gamma(11))
[hangs forever]

This has now been fixed as a consequence of #10546. Release manager: please close as fixed.

Component: modular forms

Keywords: sd51

Reviewer: David Loeffler, Alex Ghitza

Issue created by migration from https://trac.sagemath.org/ticket/6860
@williamstein williamstein added this to the sage-5.11 milestone Sep 2, 2009
@williamstein williamstein self-assigned this Sep 2, 2009
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comment:1

Wait, I'm just impatient, since:

sage: dimension_cusp_forms(Gamma(11))
26

So I'm changing this to an enhancement, since I think this should be fast.

@williamstein williamstein changed the title dimensions of modular forms spaces for Gamma(N) is busted / not implemented dimensions of modular forms spaces for Gamma(N) is slow Sep 2, 2009
@loefflerd
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loefflerd mannequin commented Jul 22, 2013

comment:2

This has now been fastified:

sage: %time dimension_cusp_forms(Gamma(10^28+731))                             
CPU times: user 0.04 s, sys: 0.02 s, total: 0.06 s
Wall time: 1.54 s
36274370885528165103530592700784546931709800073501194539717685491542679896172544001

(and most of that is the time taken to factor the level). I propose closing this as fixed.

@loefflerd loefflerd mannequin removed this from the sage-5.11 milestone Jul 22, 2013
@aghitza
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aghitza commented Jul 22, 2013

Author: David Loeffler

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aghitza commented Jul 22, 2013

comment:3

Agreed.

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aghitza commented Jul 22, 2013

Reviewer: Alex Ghitza

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aghitza commented Jul 22, 2013

Changed keywords from none to sd51

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@jdemeyer
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jdemeyer commented Aug 9, 2013

Changed reviewer from Alex Ghitza to David Loeffler, Alex Ghitza

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jdemeyer commented Aug 9, 2013

Changed author from David Loeffler to none

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