DD/MM/YYYY
09/10/2026: Paper [40] has been replaced on arXiv,
153 pages. The title has been changed.
Major revision and substantial expansion, with a considerably stronger main theorem, a thoroughly revised proof, and several new results
09/10/2026: Paper [43] has been uploaded to arXiv, joint work with Guolei Zhong.
09/09/2026: Paper [42] has been uploaded to arXiv, joint work with Guolei Zhong.
09/07/2026: Paper[ 41] has been uploaded to arXiv, joint work with Junyan Cao and Ya Deng.
10/08/2026: Paper [38] has been accepted by Forum of Mathematics, Sigma
17/07/2026: Paper [37] has been accepted by the Annales de l'Institut Fourier
25/04/2026: Paper [39] has been accepted by International Mathematics Research Notices.
13/01/2026: Paper [35] has been accepted by Analysis & PDE.
27/10/2025: Paper [34] has been accepted by Proceedings of the London Mathematical Society.
13/09/2025: Paper [33] has been accepted by Journal of Functional Analysis.
13/07/2025: Paper [32] has been accepted by Algebraic Geometry.
07/07/2025: Paper [24] has been accepted by Journal of the European Mathematical Society.
DD/MM/YYYY
I am organizing the conference:
"Mini-Workshop on Complex Geometry related to MMP"
with Takayuki Koike and Atsushi Ito.
I am organizing the conference:
Trends in Modern Geometry: Second Series, 2027
with Yuji Odaka, Hokuto Konno, Shouhei Honda, and Mayuko Mamashita.
I will give a talk at ''Fano varieties and Related topics'', held at Nagoya University, September 14th-18th 2026.
I will give a talk at IBS center, 09th--13th November.
I will give a talk at Niigata, 24th--27th November.
I will give a talk at Sun Yat-sen University, 01th--05th December.
I will give a talk at Kyusyu University, 16th--18th December.
I will give a talk at Westlake University, 16th--18th January.
My name is Shin-ichi Matsumura (松村 慎一 in native script).
I am a mathematician affiliated with the Mathematical Institute of Tohoku University in Japan.
My research interests lie in complex geometry, several complex variables, and algebraic geometry.
I am studying algebraic varieties (more generally Kaehler manifolds) and global complex analysis on them, using transcendental methods arising from the theory of several complex variables and differential geometry, motivated by higher-dimensional algebraic geometry (particularly, birational geometry). My recent interest lies in the following topics:
-Problems of extending holomorphic sections of pluri-canonical bundles from subvarieties to the ambient space, with applications in the minimal model program.
-Construction of an analytic framework for Hodge theory and the singularities (especially, the log canonical singularities) in algebraic geometry.
-Structure theorems for Kaehler spaces under certain semi-positively curved conditions, like semi-positive (bi)sectional curvature, tangent bundles, and anti-canonical divisors.
Comments on my research and papers are always welcome. Please feel free to e-mail me.
-- Papers (the list of my papers, including preprints)
-- Tips
-- I am serving as an Associate Editor of the Tohoku Mathematical Journal.
The Tohoku Mathematical Journal was first published in 1911 and is the earliest Japanese scientific journal devoted to mathematics in Western languages. It is also well-known for having published landmark papers such as Claude Chevalley’s “Sur certains groupes simples” and Alexander Grothendieck’s “Sur quelques points d’algèbre homologique.” I warmly encourage you to consider submitting your work to the journal.