## Abstract Let Ο be an irreducible character of the symmetric group __S__~__n__~. For an __n__βbyβ__n__ matrix __A__ = (__a__~__ij__~), define equation image If __G__ is a graph, let __D__(__G__) be the diagonal matrix of its vertex degrees and __A__(__G__) its adjacency matrix. Let __y__ and __
Almost all trees are co-immanantal
β Scribed by Russell Merris
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 333 KB
- Volume
- 150
- Category
- Article
- ISSN
- 0024-3795
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
We give a simple proof of the fact that for a wide variety of classes of maps on surfaces, almost all maps in the class are asymmetric. Our method is based on recent results on the appearance of submaps in the classes. 'c. 1995 Academic Press, Inc.
An undirected graph G is called a comparability graph if there exists an orientation of its edges such that the resulting relation on its vertex set is a partial order P. A comparability graph is UPO (i.e. uniquely partially orderable) if, except for its dual p-x, there is only one such partial orde
Clapham, C.R.J. and J. Sheehan, All trees are I-embeddable and all except stars are 2-embeddable, Discrete Mathematics 120 (1993) 253-259. A graph G with n vertices is said to be embeddable (in its complement) if there is an automorphism 4 of K, such that E(G)nE(&G))=@. It is known that all trees