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Physical Sciences and Mathematics Commons

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Mathematics

University of Massachusetts Amherst

Series

2005

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Full-Text Articles in Physical Sciences and Mathematics

Complete Intersections In Toric Ideals, Eduardo Cattani, Raymond Curran, Alicia Dickenstein Aug 2005

Complete Intersections In Toric Ideals, Eduardo Cattani, Raymond Curran, Alicia Dickenstein

Mathematics and Statistics Department Faculty Publication Series

We present examples which show that in dimension higher than one or codimension higher than two, there exist toric ideals IA such that no binomial ideal contained in IA and of the same dimension is a complete intersection. This result has important implications in sparse elimination theory and in the study of the Horn system of partial differential equations.