On feedback vertex sets and nonseparatin
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Ewald Speckenmeyer
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Article
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1988
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John Wiley and Sons
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English
β 341 KB
Let G be an undirected connected graph with n nodes. A subset F of nodes of G is a feedback vertex set (fvs) if G -F is a forest and a subset J of nodes of G is a nonseparating independent set (nsis) if no two nodes of J are adjacent and G -J is connected. f(G), z ( G ) denote the cardinalities of a