#16892: Function to check if a poset containt a subposet isomorphic to another
poset
---------------------------------+-----------------------------
Reporter: jmantysalo | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-wishlist
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
---------------------------------+-----------------------------
Comment (by jmantysalo):
Seems that this function is easy:
{{{
def has_isomorphic_subposet(A, B):
if
A.hasse_diagram().transitive_closure().subgraph_search(B.hasse_diagram().transitive_closure(),induced=True)
is None:
return False
return True
}}}
(Thanks to Nathann Cohen for this.) Needs to test this, and then just add
few lines of code + documentation to Sage.
--
Ticket URL: <http://trac.sagemath.org/ticket/16892#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
