Tadakazu Sawada

activity

20112021

most citedF-blowups of normal surface singularities

8 citations · 12 across the 6 of their papers we have counts for

collaborators

6 papers

math.AG2021

Singular points configurations on quotients of the projective plane by $1$ -foliations of degree $- 1$ in characteristic $2$

Tadakazu Sawada

In this paper, we classify the configurations of the singular points which appear on the quotients of the projective plane by the $1$ -foliations of degree $- 1$ in characteristic $2…

math.AG2018

Quotients of smooth projective toric varieties by $μ_{p}$ in positive characteristics $p$

Tadakazu Sawada

In this paper we show that quotients of smooth projective toric varieties by $μ_{p}$ in positive characteristics $p$ are toric varieties.

math.AG2017★ 2 cited

Korff $F$ -signatures of Hirzebruch surfaces

Daisuke Hirose, Tadakazu Sawada

M. Von Korff introduced the $F$ -signature of a normal projective variety, and computed the $F$ -signature of the product of two projective lines $P^{1} \times P^{1}$ . I…

math.AG2016

Globally F-regular $F$ -sandwiches of degree $p$ of a projective space

Tadakazu Sawada

We prove that globally F-regular $F$ -sandwiches of degree $p$ of a projective space are toric varieties.

math.AG2016★ 2 cited

Classification of globally F-regular $F$ -sandwiches of Hirzebruch surfaces

Tadakazu Sawada

Let $X$ be a smooth variety over an algebraically closed field of positive characteristic. An $F$ -sandwich of $X$ is a normal variety $Y$ through which the relative Frobenius morph…

math.AG2011★ 8 cited

F-blowups of normal surface singularities

Nobuo Hara, Tadakazu Sawada, Takehiko Yasuda

We study F-blowups of non-F-regular normal surface singularities. Especially the cases of rational double points and simple elliptic singularities are treated in detail.

Singular points configurations on quotients of the projective plane by 1-foliations of degree −1 in characteristic 2

Quotients of smooth projective toric varieties by μp​ in positive characteristics p

Korff F-signatures of Hirzebruch surfaces

Globally F-regular F-sandwiches of degree p of a projective space

Classification of globally F-regular F-sandwiches of Hirzebruch surfaces

F-blowups of normal surface singularities

Singular points configurations on quotients of the projective plane by $1$ -foliations of degree $- 1$ in characteristic $2$

Quotients of smooth projective toric varieties by $μ_{p}$ in positive characteristics $p$

Korff $F$ -signatures of Hirzebruch surfaces

Globally F-regular $F$ -sandwiches of degree $p$ of a projective space

Classification of globally F-regular $F$ -sandwiches of Hirzebruch surfaces