Toric Ideals of Integral Closures from Graphs

نویسنده

  • PETER M. JOHNSON
چکیده

A graph-theoretic method, simpler than existing ones, is used to characterize the minimal set of monomial generators for the integral closure of any polynomial ring generated by quadratic monomials. The toric ideal of relations between these generators is generated by a set of graphically described binomials. The spectra of the original ring and of its integral closure turn out to be canonically isomorphic.

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تاریخ انتشار 2008