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Department of Mathematics,
University of California San Diego

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Math 208 - Algebraic Geometry Seminar

Dr. Jose Yanez

UCLA

Polarized endomorphism of log Calabi-Yau pairs

Abstract:

An endomorphism on a normal projective variety X is said to be polarized if the pullback of an ample divisor A is linearly equivalent to qA, for some integer q>1. Examples of these endomorphisms are naturally found in toric varieties and abelian varieties. Indeed, it is conjectured that if X admits a polarized endomorphism, then X is a finite quotient of a toric fibration over an abelian variety. In this talk, we will restrict to the case of log Calabi-Yau pairs (X,B). We prove that if (X,B) admits a polarized endomorphism that preserves the boundary structure, then (X,B) is a finite quotient of a toric log Calabi-Yau fibration over an abelian variety. This is joint work with Joaquin Moraga and Wern Yeong.

Host: Kristin DeVleming

February 7, 2025

4:00 PM

APM 7321

Research Areas

Algebraic Geometry

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