128 citations
- University of StuttgartDE7 papers
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- Ames National LaboratoryUS3 papers
- Iowa State UniversityUS3 papers
- Forschungszentrum JülichDE2 papers
- Technische Universität BraunschweigDE2 papers
- Tohoku UniversityJP2 papers
- University Hospital MagdeburgDE2 papers
- University of FreiburgDE2 papers
- Brandeis UniversityUS1 paper
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5 papers · 1 filter
Tight closure does not commute with localization
Holger Brenner, Paul Monsky
We give an example showing that tight closure does not commute with localization.
The variety of exterior powers of linear maps
Winfried Bruns, Aldo Conca
Let be a field and and be -vector spaces of dimension and . Let be the canonical map from to . We investigate the Z…
The Multiplicity Conjecture in low codimensions
Juan C. Migliore, Uwe Nagel, Tim Römer
We establish the multiplicity conjecture of Herzog, Huneke, and Srinivasan about the multiplicity of graded Cohen-Macaulay algebras over a field, for codimension two algebras and f…
Witt vectors and Tambara functors
Morten Brun
We give, for every finite group G, a combinatorial description of the ring of G-Witt vectors on a polynomial algebra over the integers. Using this description we show that the func…
Canonical modules of Rees algebras
Winfried Bruns, Gaetana Restuccia
We compute the canonical class of certain Rees algebras. Our formula generalizes that of Herzog and Vasconcelos. Its proof relies on the fact that the formation of the canonical mo…