## Abstract A __tournament__ is an orientation of the edges of a complete graph. An arc is __pancyclic__ in a tournament __T__ if it is contained in a cycle of length __l__, for every 3ββ€β__l__ββ€β|T|. Let __p__(__T__) denote the number of pancyclic arcs in a tournament __T__. In 4, Moon showed that
Weakening arcs in tournaments
β Scribed by Denis Hanson; John W. Moon
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 155 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
A weakening arc of an irreducible tournament is an arc whose reversal creates a reducible tournament. We consider properties of such arcs and derive recurrence relations for enumerating strong tournaments with no such arcs, one or more such arcs, and exactly one such arc. We also give some asymptotic results on the numbers of such tournaments, among other things. Β© 2003 Wiley Periodicals, Inc. J Graph Theory 45: 142β162, 2004
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