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4 papers · 2 filters
Low-dimensional Singularities with Free Divisors as Discriminants
Ragnar-Olaf Buchweitz, Wolfgang Ebeling, Hans-Christian Graf v. Bothmer
We present versal complex analytic families, over a smooth base and of fibre dimension zero, one, or two, where the discriminant constitutes a free divisor. These families include…
The global decomposition theorem for Hochschild (co-)homology of singular spaces via the Atiyah-Chern character
Ragnar-Olaf Buchweitz, Hubert Flenner
We generalize the decomposition theorem of Hochschild, Kostant and Rosenberg for Hochschild (co-)homology to arbitrary morphisms between complex spaces or schemes over a field of c…
Global Hochschild (co-)homology of singular spaces
R. -O. Buchweitz, H. Flenner
We introduce Hochschild (co-)homology of morphisms of schemes or analytic spaces and study its fundamental properties. In analogy with the cotangent complex we introduce the so cal…
A Chevalley formula in equivariant -theory
Matthieu Willems
The aim of this paper is to give a recursive formula to multiply a line bundle with the structure sheaf of a schubert variety in the equivariant -theory of a flag variety.