The number of the isomorphism classes of n-fold coverings of a graph G is enumerated by the authors (Canad.
Free Cumulants and Enumeration of Connected Partitions
β Scribed by Franz Lehner
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 193 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0195-6698
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π SIMILAR VOLUMES
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A necessary and su$cient condition for an m;n matrix A over F O having a Moor}Penrose generalized inverse (M}P inverse for short) was given in (C. K. Wu and E. Dawson, 1998, Finite Fields Appl. 4, 307}315). In the present paper further necessary and su$cient conditions are obtained, which make clear
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