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Vietnam Journal of Mathematics 34:4(2006) 489-494

  Integral Closures of Monomial Ideals and Fulkersonian Hypergraphs

Ngo Viet Trung

Abstract.  We prove that the integral closures of the powers of a squarefree monomial ideal I equal the symbolic powers if and only if I is the edge ideal of a Fulkersonian hypergraph.

2000 Mathematics Subject Classification: 13B22, 05C65.

Keywords: Monomial ideal, Fulkersonian hypergraph.

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Published by Springer since January 2013