๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Forbidden triples for perfect matchings

โœ Scribed by Katsuhiro Ota; Michael D. Plummer;; Akira Saito


Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
117 KB
Volume
67
Category
Article
ISSN
0364-9024

No coin nor oath required. For personal study only.

โœฆ Synopsis


Let H be a set of connected graphs. A graph is said to be H-free if it does not contain any member of H as an induced subgraph. Plummer and Saito [J Graph Theory 50 (2005), 1-12] and Fujita et al. [J Combin Theory Ser B 96 (2006), 315-324] characterized all H with |H| โ‰ค 2 such that every connected H-free graph of sufficiently large even order has a perfect matching. Extending this line of research, we give the characterization in the case of |H| โ‰ค 3.


๐Ÿ“œ SIMILAR VOLUMES


Rook Theory for Perfect Matchings
โœ J. Haglund; J.B. Remmel ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 302 KB

In classical rook theory there is a fundamental relationship between the rook numbers and the hit numbers relative to any board. In that theory the k-th hit number of a board B can be interpreted as the number of permutations whose intersection with B is of size k. In the case of Ferrers boards ther

A compactness result for perfect matchin
โœ Norbert Polat ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 537 KB

We show that an infinite set system (V, ~g), for which ~ is a subspace of the vector space of all finite subsets of V, has a perfect matching if and only if every finite subset of V is covered by a matching of (V, ~).

cover
โœ Melissa Adams ๐Ÿ“‚ Fiction ๐Ÿ“… 2020 ๐Ÿ› Lost & Bound Publishing ๐ŸŒ English โš– 144 KB ๐Ÿ‘ 3 views

A first kiss at a party: that kiss haunts me to this day, no kiss after that has ever made me feel anything comparable. But It happened during a party game, the lights were turned off, so I have no idea who kissed me. That summer, I fell for two amazing boys: Chase and Reid. Everything fell a

cover
โœ Adams, Melissa ๐Ÿ“‚ Fiction ๐Ÿ“… 2020 ๐ŸŒ English โš– 143 KB ๐Ÿ‘ 2 views

A first kiss at a party: that kiss haunts me to this day, no kiss after that has ever made me feel anything comparable. But It happened during a party game, the lights were turned off, so I have no idea who kissed me. That summer, I fell for two amazing boys: Chase and Reid. Everything fell a

A Complementation Theorem for Perfect Ma
โœ Mihai Ciucu ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 589 KB

A cellular graph is a graph whose edges can be partitioned into 4-cycles (called cells) so that each vertex is contained in at most two cells. We present a ``Complementation Theorem'' for the number of matchings of certain subgraphs of cellular graphs. This generalizes the main result of M. Ciucu (J

Heuristic enhancements of the search for
โœ M.M. Balakrishnarajan; P. Venuvanalingam ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 313 KB

A search based algorithm has been introduced by us [1] to generate all perfect matchings on a graph. This paper presents a modified search that employs novel heuristics for rapid generation. This is done by an intelligent selection of edges for generating the branch nodes of the associated semantic