The simple normal crossing degeneration conjecture for Moishezon morphisms

Let D\mathbb D denote the complex disc. Let XX be a smooth analytic space and let g:XDg:X\to\mathbb D be a proper morphism. Assume that for s0s\neq 0 the fiber XsX_s is Moishezon, and that X0X_0 is a simple normal crossing divisor whose irreducible components are Moishezon.

The simple normal crossing degeneration conjecture. Under these assumptions, gg is Moishezon.

The paper presents this as a key special case of the local Moishezon morphism problem. It is proposed as an open question for degenerations with mildly singular fibers.

Sources & referencesView supporting material

Primary source

János Kollár, “Moishezon morphisms”, arXiv:2102.02614 (2021).

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