Independent Set of Representatives

[nathanncohen]

See http://groups.google.com/group/sage-devel/browse_thread/thread/9d9b09274f1eab83/79938a2139ba25d9?lnk=gst&q=isr#79938a2139ba25d9

This patch add the ISR() function for graphs. The Independent Set of Representatives is a generalisation of graph coloring and list coloring, but goes way further ! I tried to take care of the documentation, so you will find some more informations in the docstrings if you need it ! ;-)

This patch uses Linear Programming, so you will have to first install GLPK (see #6867), then the patch for numerical.MIP at #6869 ;-)

Component: graph theory

Author: Nathann Cohen

Reviewer: Robert Miller

Merged: sage-4.3.rc1

Issue created by migration from https://trac.sagemath.org/ticket/6764

[nathanncohen]

Description changed:

--- 
+++ 
@@ -2,4 +2,4 @@
 
 This patch add the ISR() function for graphs. The Independent Set of Representatives is a generalisation of graph coloring and list coloring, but goes way further ! I tried to take care of the documentation, so you will find some more informations in the docstrings if you need it ! ;-)
 
-This patch uses Linear Programming, so you will have to first install GLPK (just type sage -i glpk 4.38), then the patch AllMIP at #6502 ;-) 
+This patch uses Linear Programming, so you will have to first install GLPK (just type sage -i glpk 4.38), then the patch AllMIP-2.flattened at #6502 ;-) 

[nathanncohen]

comment:3

As the functions dealing with LP have not been reviewed, I prefer to rewrite the MIP class for Sage to make it easier to use. I will post a new version of the MIP patch as soon as possible, along with all the patches for functions using it.

Sorry for the trouble, I'll try to make it quick !

Nathann

[nathanncohen]

Description changed:

--- 
+++ 
@@ -2,4 +2,4 @@
 
 This patch add the ISR() function for graphs. The Independent Set of Representatives is a generalisation of graph coloring and list coloring, but goes way further ! I tried to take care of the documentation, so you will find some more informations in the docstrings if you need it ! ;-)
 
-This patch uses Linear Programming, so you will have to first install GLPK (just type sage -i glpk 4.38), then the patch AllMIP-2.flattened at #6502 ;-) 
+This patch uses Linear Programming, so you will have to first install GLPK (just type sage -i glpk 4.38), then the patch for numerical.MIP at #6869 ;-) 

[nathanncohen]

Description changed:

--- 
+++ 
@@ -2,4 +2,4 @@
 
 This patch add the ISR() function for graphs. The Independent Set of Representatives is a generalisation of graph coloring and list coloring, but goes way further ! I tried to take care of the documentation, so you will find some more informations in the docstrings if you need it ! ;-)
 
-This patch uses Linear Programming, so you will have to first install GLPK (just type sage -i glpk 4.38), then the patch for numerical.MIP at #6869 ;-) 
+This patch uses Linear Programming, so you will have to first install GLPK (see #6867), then the patch for numerical.MIP at #6869 ;-) 

[nathanncohen]

comment:6

Just updated, everything is ready for review :-)

Thanks again for your help !

Nathann