Mathematics – Algebraic Geometry
Scientific paper
2002-07-05
Mathematics
Algebraic Geometry
Scientific paper
A conjecture of Kato says that the monodromy operator on the cohomology of a
semi-stable degeneration of projective varieties is represented by an algebraic
cycle on the special fiber of a normal crossing model of the fiber product
degeneration. We prove this conjecture in the simple case of a semi-stable
degeneration arising from a Lefschetz fibration.
Consani Caterina
Kim Minhyong
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