User contributions
- 16:04, 11 February 2011 (diff | hist) . . (+55) . . Integer polyhedra
- 21:21, 31 March 2010 (diff | hist) . . (+331) . . List colouring of two matroids
- 19:39, 28 November 2009 (diff | hist) . . (+9) . . Integer polyhedra
- 19:33, 28 November 2009 (diff | hist) . . (+1,344) . . N Clutter (Created page with 'A '''clutter''' is a set family with no member containing another member. In other context, they are also called Sperner families. Let ''C'' be a clutter on ground set ''V''. We…')
- 18:42, 28 November 2009 (diff | hist) . . (+27) . . T-perfect and h-perfect graphs
- 18:33, 28 November 2009 (diff | hist) . . (0) . . m Conforti-Cornuéjols conjecture on the MFMC property (moved Clutters with the MFMC property to Conforti-Cornuéjols conjecture on the MFMC property)
- 18:33, 28 November 2009 (diff | hist) . . (+66) . . N Clutters with the MFMC property (moved Clutters with the MFMC property to Conforti-Cornuéjols conjecture on the MFMC property) (current)
- 18:29, 28 November 2009 (diff | hist) . . (+225) . . Are t-perfect graphs strongly t-perfect?
- 18:23, 28 November 2009 (diff | hist) . . (+417) . . N Chromatic number of t-perfect graphs (Created page with '<onlyinclude> Is every t-perfect graph 4-colourable? </onlyinclude> ==Remarks== Stein and Bruhn <ref>M. Stein, H. Bruhn, ''On claw-free t-per…')
- 18:08, 28 November 2009 (diff | hist) . . (-68) . . T-perfect and h-perfect graphs
- 18:06, 28 November 2009 (diff | hist) . . (+1,481) . . N T-perfect and h-perfect graphs (Created page with '==t-perfect and strongly t-perfect graphs== A graph ''G=(V, E)'' is '''t-perfect''' if its stable set polytope is determined by the system <math>\begin{array}{rll} x(v) & \geq …')
- 17:29, 28 November 2009 (diff | hist) . . (+6) . . Are t-perfect graphs strongly t-perfect?
- 17:10, 28 November 2009 (diff | hist) . . (+47) . . Integer polyhedra
- 17:06, 28 November 2009 (diff | hist) . . (0) . . m Are t-perfect graphs strongly t-perfect? (moved Strongly t-perfect graphs to Are t-perfect graphs strongly t-perfect?)
- 17:06, 28 November 2009 (diff | hist) . . (+54) . . N Strongly t-perfect graphs (moved Strongly t-perfect graphs to Are t-perfect graphs strongly t-perfect?) (current)
- 13:20, 28 November 2009 (diff | hist) . . (+408) . . Are t-perfect graphs strongly t-perfect?
- 22:14, 1 November 2009 (diff | hist) . . (+1,317) . . N Aharoni-Berger conjecture (Created page with '<onlyinclude> Is it true that if <math>M_1, \ldots, M_k</math> are matroids on the same ground set ''S'' and <math>\sum_{i=1}^k r_i (X_i) \geq l(k-1)</math> for all partitions <m…')
- 21:47, 1 November 2009 (diff | hist) . . (+981) . . N Expressing vectors using bases of a matroid (Created page with '<onlyinclude> Let ''M'' be a matroid on a ground-set of ''n'' elements, and ''z'' a vector which is the sum of the characteristic vectors of some bases. Can ''z'' be expressed as…')
- 16:01, 19 August 2009 (diff | hist) . . (+50) . . Egres:Old problems
- 14:45, 18 August 2009 (diff | hist) . . (+183) . . Sandbox
