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math.AG2026
The McKay correspondence and local heights for wild-by-tame split metacyclic groups
Julie Tavernier, Takehiko Yasuda
We study the McKay correspondence for the representations of certain wild-by-tame split metacyclic groups whose order is divisible by the characteristic of the base field. We calcu…
math.AG2026
Exceptional loci of F-blowups and -Hilbert schemes
Enrique Chávez-Martínez, Yutaro Kaijima, Takehiko Yasuda
We study exceptional loci of F-blowups of normal toric varieties. In the $\Q$-factorial case, this study amounts to studying the exceptional loci of -Hilbert schemes. We give a…
math.AG2026
On linear -quotients
Quentin Posva, Linus Rösler, Takehiko Yasuda
We study linear -actions on affine spaces and the associated quotient singularities, using explicit stacky resolutions. We describe when the quotient singularities are log can…