Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
| 2019-06-07 10:14:46 +0200 | received badge | ● Scholar (source) |
| 2019-06-07 10:14:42 +0200 | received badge | ● Supporter (source) |
| 2019-06-06 10:08:10 +0200 | received badge | ● Student (source) |
| 2019-06-05 16:03:06 +0200 | asked a question | chromatic polynomial graph with loops Since there are no proper colorings of graphs with loops, their chromatic polynomial should be zero. SageMath 8.6 however seems to ignore the loops and returns a nonzero chromatic polynomial for the graph on one vertex with one loop edge. |
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.