## Abstract A 1โfactorization is constructed for the line graph of the complete graph __K~n~__ when __n__ is congruent to 0 or 1 modulo 4.
On minimum sets of 1-factors covering a complete multipartite graph
โ Scribed by David Cariolaro; Hung-Lin Fu
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 132 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
We determine necessary and sufficient conditions for a complete multipartite graph to admit a set of 1โfactors whose union is the whole graph and, when these conditions are satisfied, we determine the minimum size of such a set. ยฉ 2008 Wiley Periodicals, Inc. J Graph Theory 58:239โ250, 2008
๐ SIMILAR VOLUMES
## Abstract Bounds on the sum and product of the chromatic numbers of __n__ factors of a complete graph of order __p__ are shown to exist. The wellโknown theorem of Nordhaus and Gaddum solves the problem for __n__ = 2. Strict lower and some upper bounds for any __n__ and strict upper bounds for __n
## Abstract It is known that a necessary condition for the existence of a 1โrotational 2โfactorization of the complete graph __K__~2__n__+1~ under the action of a group __G__ of order 2__n__ is that the involutions of __G__ are pairwise conjugate. Is this condition also sufficient? The complete ans
Let n โฅ 2 be an integer. The complete graph K n with a 1-factor F removed has a decomposition into Hamilton cycles if and only if n is even. We show that K n -F has a decomposition into Hamilton cycles which are symmetric with respect to the 1-factor F if and only if n โก 2,4 mod 8. We also show that
## Abstract We determine the necessary and sufficient conditions for the existence of a decomposition of the complete graph of even order with a 1โfactor added into cycles of equal length. ยฉ 2003 Wiley Periodicals, Inc. J Combin Designs 11: 170โ207, 2003; Published online in Wiley InterScience (www
## Abstract For integers __d__โฅ0, __s__โฅ0, a (__d, d__+__s__)โ__graph__ is a graph in which the degrees of all the vertices lie in the set {__d, d__+1, โฆ, __d__+__s__}. For an integer __r__โฅ0, an (__r, r__+1)โ__factor__ of a graph __G__ is a spanning (__r, r__+1)โsubgraph of __G__. An (__r, r__+1)โ