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 2024 · math.AGShow all

2 papers · 2 filters

math.AG2024

Singular Nakano positivity of direct image sheaves of adjoint bundles

Takahiro Inayama, Shin-ichi Matsumura, Yuta Watanabe

In this paper, we consider a proper Kähler fibration $f : X \to Y$ and a singular Hermitian line bundle $(L, h)$ on $X$ with semi-positive curvature. We prove that the direct…

math.AG2024

Minimal projective varieties satisfying Miyaoka's equality

Masataka Iwai, Shin-ichi Matsumura, Niklas Müller

In this paper, we establish a structure theorem for minimal projective klt varieties $X$ that satisfiy Miyaoka's equality $3 c_{2} (X) = c_{1} (X)^{2}$ . Specifically, we prove that the cano…