Cyclic homology, cdh-cohomology and negative K-theory

By Guillermo Cortiñas, Christian Haesemeyer, M. Schlichting, Charles A. Weibel. 2005

128 citations recorded by the source corpus.

We prove a blow-up formula for cyclic homology which we use to show that infinitesimal K-theory satisfies cdh-descent. Combining that result with some computations of the cdh-cohomology of the sheaf of regular functions, we verify a conjecture of Weibel predicting the vanishing of algebraic K-theory of a scheme in degrees less than minus the dimension of the scheme, for schemes essentially of finite type over a field of characteristic zero.

Subfields: Geometry and Topology, Mathematical Physics

View Paper: https://www.semanticscholar.org/paper/68ac473426ce0dc06ce674b367301d367a852601

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In Geometry and Topology

  1. B. Keller
  2. Christian Haesemeyer
  3. Charles A. Weibel
  4. Guillermo Cortiñas
  5. I. Reiten
  6. Pierre-Guy Plamondon
  7. Osamu Iyama
  8. Bernard Leclerc

In Mathematical Physics

  1. B. Keller
  2. Charles A. Weibel
  3. Christian Haesemeyer
  4. Guillermo Cortiñas
  5. Alexander Kuznetsov
  6. I. Reiten
  7. Gonçalo Tabuada
  8. Osamu Iyama

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