We define a new notion of supported global deformation class for a semistable family of complex varieties over a curve f : X → B. We use this notion to study when X, possibly up to a finite covering, has a generically finite morphism onto a product B × Y with Y of general type.
Global Kodaira–Spencer class and Massey products
Rizzi L.;Zucconi F.
2025-01-01
Abstract
We define a new notion of supported global deformation class for a semistable family of complex varieties over a curve f : X → B. We use this notion to study when X, possibly up to a finite covering, has a generically finite morphism onto a product B × Y with Y of general type.File in questo prodotto:
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