EJC
2002
13 years 6 months ago
2002
EJC
2002
13 years 6 months ago
2002
EJC
2002
13 years 6 months ago
2002
EJC
2002
13 years 6 months ago
2002
In this short note the neighbourhood graph of a Cayley graph is considered. It has as nodes a symmetric generating set of a finitely-generated group . Two nodes are connected by a...
EJC
2002
13 years 6 months ago
2002
EJC
2002
13 years 6 months ago
2002
A cycle in a matroid is a disjoint union of circuits. This paper proves that every regular matroid M without coloops has a set S of cycles whose union is E(M) such that every elem...
EJC
2002
13 years 6 months ago
2002
In this paper, we prove the existence of acute triangulations for general polyhedral surfaces. We also show how to obtain nonobtuse subtriangulations of triangulated polyhedral sur...
EJC
2002
13 years 6 months ago
2002
EJC
2002
13 years 6 months ago
2002
EJC
2002
13 years 6 months ago
2002
The Orlik-Solomon algebra of a matroid M is the quotient of the exterior algebra on the points by the ideal (M) generated by the boundaries of the circuits of the matroid. There i...