3 papers
math.AG2001
Nonvanishing of External Products for Higher Chow Groups
Andreas Rosenschon, Morihiko Saito
Consider an external product of a higher cycle and a usual cycle which is algebraically equivalent to zero. Assume there exists an algebraically closed subfield k such that the hig…
math.AG2001
Cycle Map for Strictly Decomposable Cycles
Andreas Rosenschon, Morihiko Saito
We introduce a class of cycles, called nondegenerate, strictly decomposable cycles, and show that the image of each cycle in this class under the refined cycle map to an extension…
math.AG1999
On algebraic mixed Hodge substructures of H^2
L. Barbieri-Viale, A. Rosenschon
This paper has been superseded to a great extent by the following: Paper: math.AG/0511558 Title: The Neron-Severi group of a proper seminormal complex variety Authors: L. Barbieri-…