| Is the null-graph a pointless concept? |
[Mar. 13th, 2012|12:35 am] |
The graph with no points and no lines is discussed critically. Arguments for and against its official admittance as a graph are presented. This is accompanied by an extensive survey of the literature. Paradoxical properties of the null-graph are noted. No conclusion is reached.
http://www.springerlink.com/content/x720016268q5l24x/
Скачать нельзя, что характерно.
via http://matthewkahle.wordpress.com/ |
|
|