Title

Duality, a-invariants and canonical modules of rings arising from linear optimization problems

Authors

Authors

J. P. Brennan; L. A. Dupont;R. H. Villarreal

Comments

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Abbreviated Journal Title

Bull. Math. Soc. Sci. Math. Roum.

Keywords

a-invariant; canonical module; Gorenstein ring; normal subring; integer; rounding property; Rees algebra; Ehrhart ring; bipartite graph; max-flow; min-cut; clutter; GRAPHS; POLYTOPES; NORMALITY; IDEALS; CONES; Mathematics

Abstract

The aim of this paper is to study integer rounding properties of various of linear inequalities to gain insight about the algebraic properties of Rees algebras of monomial ideals and monomial subrings. We study the normality and Gorenstein property-as well as the canonical module and the a-invariant-of Rees algebras and subrings arising from systems with the integer rounding property. We relate the algebraic properties of Rees algebras and monomial subrings with integer rounding properties and present a duality theorem.

Journal Title

Bulletin Mathematique De La Societe Des Sciences Mathematiques De Roumanie

Volume

51

Issue/Number

4

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

279

Last Page

305

WOS Identifier

WOS:000260560000002

ISSN

1220-3874

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