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Characterizations of semi-perfect and perfect modules

โœ Scribed by Goro Azumaya

Publisher
Springer-Verlag
Year
1974
Tongue
French
Weight
563 KB
Volume
140
Category
Article
ISSN
0025-5874

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Let ฮฒ(G) and ฮ“(G) be the independence number and the upper domination number of a graph G, respectively. A graph G is called ฮ“-perfect if ฮฒ(H) = ฮ“(H), for every induced subgraph H of G. The class of ฮ“-perfect graphs generalizes such well-known classes of graphs as strongly perfect graphs, absorbantl