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math.AG2026
Duals of log abelian varieties
Takeshi Kajiwara, Kazuya Kato, Chikara Nakayama
We prove the existence of the dual of a polarizable log abelian variety.
math.AG2026
Tangential morphisms via log arithmetic geometry
Yuichiro Hoshi, Makoto Matsumoto, Chikara Nakayama
We give a reformulation of tangential morphisms (which is a generalization of Deligne's tangential base point) via log geometry.