Prelog Chow rings

Abstract: In this joint work with Christian Böhning and Hans-Christian Graf von Bothmer, we explore Chow rings in the setting of log geometry, leading to the construction of prelog Chow rings of normal crossings varieties with smooth components. For a strictly semistable degeneration, the prelog Chow ring of the central fiber admits a specialization morphism from the Chow group of the generic fiber. After introducing the definition, I will describe examples illustration the construction.

algebraic geometry

Audience: researchers in the topic

Warwick algebraic geometry seminar