#812: add Pollack/Stevens overconvergent modular symbols code
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Reporter: craigcitro | Owner: mmasdeu
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-feature
Component: modular forms | Resolution:
Keywords: p-adic | Merged in:
L-functions | Reviewers:
Authors: Marc Masdeu, | Work issues:
David Roe | Commit:
Report Upstream: N/A | 990f9b804dc653d3b0a2ecf9946dba26584f9481
Branch: u/mmasdeu/812 | Stopgaps:
Dependencies: |
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Comment (by wuthrich):
* The normalisation of the p-adic L-function is wrong. One has to divide
by the number of real connected components of the elliptic curve. This
matters for p=2, otherwise it is a choice of normalisation. But it is
better to be consistent with sage.
* If we leave {{{E.modular_symbol()}}} as modified here, then it should
take eclib as default (as stated in the new docstring). Without having
resolved #10256, {{{ps_modsym_from_elliptic_curve}}} should take eclib for
positive and sage for negative. Or is sage for both a better choice?
Certainly much slower. (Again I opt, for keeping as before and use slow
sage for overconvergent ms by now)
--
Ticket URL: <http://trac.sagemath.org/ticket/812#comment:63>
Sage <http://www.sagemath.org>
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