FACE PAIRING GRAPHS AND 3-MANIFOLD ENUMERATION.

Autor: BURTON, BENJAMIN A.
Předmět:
Zdroj: Journal of Knot Theory & Its Ramifications; Dec2004, Vol. 13 Issue 8, p1057-1101, 45p
Abstrakt: The face pairing graph of a 3-manifold triangulation is a 4-valent graph denoting which tetrahedron faces are identified with which others. We present a series of properties that must be satisfied by the face pairing graph of a closed minimal ℙ2-irreducible triangulation. In addition we present constraints upon the combinatorial structure of such a triangulation that can be deduced from its face pairing graph. These results are then applied to the enumeration of closed minimal ℙ2-irreducible 3-manifold triangulations, leading to a significant improvement in the performance of the enumeration algorithm. Results are offered for both orientable and non-orientable triangulations. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index