Title of article :
The categorical product of two 5-chromatic digraphs can be 3-chromatic
Author/Authors :
Stéphane Bessy، نويسنده , , Stéphan Thomassé، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
We provide an example of a 5-chromatic oriented graph D such that the categorical product of D and image is 3-chromatic, where image is the transitive tournament on 5 vertices.
Journal title :
Discrete Mathematics
Journal title :
Discrete Mathematics
