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Computing the integral closure of an affine semigroup

Algebra & Discrete Mathematics

Speaker: Prof. Winfried Bruns, Universitat Osnabrueck Germany
Location: 693 Kerr
Start time: Thu, Feb 27 2003, 12:10PM

We discuss the basic algorithms of {\tt normaliz}, a program for the compuation of integral closures of affine semigroups, or, equivalently, Hilbert bases of finite rational cones. {\normaliz}, developed by R. Koch and the speaker, can also be used to compute the volume and the lattice points of integral polytopes, integral closures of monomial ideals and related objects.