On the number of irreducible coverings by edges of complete bipartite graphs (Q1916141)
From MaRDI portal
 | This is the item page for this Wikibase entity, intended for internal use and editing purposes. Please use this page instead for the normal view: On the number of irreducible coverings by edges of complete bipartite graphs |
scientific article; zbMATH DE number 896027
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the number of irreducible coverings by edges of complete bipartite graphs |
scientific article; zbMATH DE number 896027 |
Statements
On the number of irreducible coverings by edges of complete bipartite graphs (English)
0 references
24 November 1996
0 references
This paper proves that the exponential generating function of the number \(N(p, q)\) of irreducible coverings by edges of the vertices of complete bipartite graphs \(K_{p, q}\) equals \(\exp(xe^y+ ye^x- x- y- xy)- 1\).
0 references
generating function
0 references
irreducible coverings
0 references
