collaborators

3 papers

math.AG2024

Quasi-F-splittings in birational geometry III

Tatsuro Kawakami, Teppei Takamatsu, Hiromu Tanaka +3

We prove that -Gorenstein quasi--regular singularities are klt. To this end, we shall introduce quasi-test ideals.

math.AG2024

Quasi--splittings and quasi--regularity

Hiromu Tanaka, Jakub Witaszek, Fuetaro Yobuko

We develop the theory of quasi--splittings, quasi--regularity, and quasi--regularity.

math.AG2023

Quasi-F-split and Hodge-Witt

Fuetaro Yobuko

We study an analogy between quasi-F-split and Hodge-Witt. In particular, we show that the fiber product of an F-split scheme and a quasi-F-split scheme is quasi-F-split and, in con…