#19660: Fix bug in word problem for GammaH arithmetic groups
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Reporter: mmasdeu | Owner:
Type: defect | Status: new
Priority: minor | Milestone: sage-6.10
Component: modular | Keywords: Farey symbol, word problem,
forms | GammaH
Merged in: | Authors: Marc Masdeu
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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The current implementation of Farey symbols has a bug only visible for the
general congruence subgroups GammaH.
I am fixing this bug, and at the same time add a check option (enabled by
default) that will help in detecting similar problems in the future.
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Ticket URL: <http://trac.sagemath.org/ticket/19660>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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