#15662: Ihara zeta function of graphs
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Reporter: | Owner:
chapoton | Status: needs_review
Type: | Milestone: sage-6.1
enhancement | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers:
theory | Work issues:
Keywords: zeta | Commit:
function | 403fd968aefe0eaf3b9e72f4ec79ba8ac7d9aad5
Authors: | Stopgaps:
Frédéric Chapoton |
Report Upstream: N/A |
Branch: |
public/15662 |
Dependencies: |
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Comment (by chapoton):
you forgot the power of `(1-t^2)` when checking the K4 result in the Bull.
AMS paper:
{{{
sage: g=graphs.CompleteGraph(4)
sage: p1=g.ihara_zeta_function()
sage: p2=(1-t^2)**2*(1-t)*(1-2*t)*(1+t+2*t^2)^3
sage: p1==p2
True
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/15662#comment:18>
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