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math.AG2000
Polytopal linear algebra
Winfried Bruns, Joseph Gubeladze
We investigate similarities between the category of vector spaces and that of polytopal algebras, containing the former as a full subcategory. In Section 2 we introduce the notion…
math.AC2000
Divisorial linear algebra of normal semigroup rings
W. Bruns, J. Gubeladze
We investigate the minimal number of generators and the depth of divisorial ideals over normal semigroup rings. Such ideals are defined by the inhomogeneous systems of linear i…