#6680: [with patch, needs review] Flow, Matching, Connectivity, and some Hard
problems
----------------------------+-----------------------------------------------
Reporter: ncohen | Owner: rlm
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.2.1
Component: graph theory | Keywords:
Work_issues: | Author:
Reviewer: | Merged:
----------------------------+-----------------------------------------------
Description changed by ncohen:
Old description:
> Hello everybody !!!
>
> Here are several new functions for the Graph class in Sage :
> * def min_dominating_set(g, value_only=False,log=0):
> * def min_independent_dominating_set(g, value_only=False,log=0):
> * def min_vertex_cover(g,value_only=False,log=0):
> * def max_matching(g,value_only=False, use_edge_labels=True):
> * def max_flow(g,x,y,value_only=True,integer=False,
> use_edge_labels=True):
> * def min_edge_cut(g,s,t,value_only=True,use_edge_labels=True):
> * def min_vertex_cut(g,s,t,value_only=True):
> * def edge_connectivity(g,value_only=True,use_edge_labels=True):
> * def vertex_connectivity(g,value_only=True):
>
> Those new functions all use Linear programming, so to use them you will
> have to install GLPK ( see ticket #7049 )
New description:
Hello everybody !!!
Here are several new functions for the Graph class in Sage :
* def min_dominating_set(g, value_only=False,log=0):
* def min_independent_dominating_set(g, value_only=False,log=0):
* def min_vertex_cover(g,value_only=False,log=0):
* def max_matching(g,value_only=False, use_edge_labels=True):
* def max_flow(g,x,y,value_only=True,integer=False,
use_edge_labels=True):
* def min_edge_cut(g,s,t,value_only=True,use_edge_labels=True):
* def min_vertex_cut(g,s,t,value_only=True):
* def edge_connectivity(g,value_only=True,use_edge_labels=True):
* def vertex_connectivity(g,value_only=True):
If you have no LP Solver installed, you can download GLPK or CBC from this
address : http://www.sagemath.org/packages/optional/
--
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6680#comment:12>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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