Shin-ichi Matsumura

activity

20102026

most citedA general extension theorem for cohomology classes on non reduced analytic spaces

39 citations · 187 across the 37 of their papers we have counts for

collaborators

Showing 2023Show all

3 papers · 1 filter

math.AG2023

Positivity of tangent sheaves of projective varieties -- the structure of MRC fibrations

Masataka Iwai, Shin-ichi Matsumura, Guolei Zhong

In this paper, we extend the structure theorem for smooth projective varieties with nef tangent bundle to projective klt varieties whose tangent sheaf is either positively curved o…

math.CV2023★ 1 cited

An injectivity theorem on snc compact Kähler spaces: an application of the theory of harmonic integrals on log-canonical centers via adjoint ideal sheaves

Tsz On Mario Chan, Young-Jun Choi, Shin-ichi Matsumura

Let $(X, D)$ be a log-canonical (lc) pair, in which $X$ is a compact Kähler manifold and $D$ is a reduced snc divisor, and let $F$ be a holomorphic line bundle on $X$ equipped with…

math.AG2023★ 3 cited

Compact Kähler three-folds with nef anti-canonical bundle

Shin-ichi Matsumura, Xiaojun Wu

In this paper, we prove that a non-projective compact Kähler three-fold with nef anti-canonical bundle is, up to a finite étale cover, one of the following: a manifold with vanishi…