Grothendieck groups, convex cones and maximal Cohen–Macaulay points

R Takahashi - Mathematische Zeitschrift, 2021 - Springer
Let R be a commutative noetherian ring. Let H (R) H (R) be the quotient of the Grothendieck
group of finitely generated R-modules by the subgroup generated by pseudo-zero modules …

Geometry of varieties for graded maximal Cohen–Macaulay modules

N Hiramatsu - manuscripta mathematica, 2022 - Springer
We study a variety for graded maximal Cohen–Macaulay modules, which was introduced by
Dao and Shipman. The main result of this paper asserts that there are only a finite number of …

[PDF][PDF] A remark on graded countable Cohen-Macaulay representation type

N Hiramatsu - The Eighth China-Japan-Korea International …, 2019 - ring-theory-japan.com
A remark on graded countable Cohen-Macaulay representation type Page 1 A remark on
graded countable Cohen-Macaulay representation type Naoya Hiramatsu National Institute of …

[引用][C] CONVEX CONES SPANNED BY MAXIMAL COHEN–MACAULAY MODULES