Takumi Murayama's user avatar
Takumi Murayama's user avatar
Takumi Murayama's user avatar
Takumi Murayama
  • Member for 10 years, 11 months
  • Last seen this week
3 votes
Accepted

Proper birational morphism from a Gorenstein normal scheme to a normal local domain, with trivial higher direct images, implies Cohen-Macaulay?

3 votes
Accepted

Is pseudo-rationality preserved by etale morphisms?

7 votes
Accepted

Quotients of Gorenstein rings

4 votes
Accepted

Nef and pseudo-effective divisors over non algebraically closed fields

9 votes

Regular morphisms and formal power series

4 votes

What is Serre's condition (S_n) for sheaves?

3 votes
Accepted

Direct image of reflexive sheaf via finite, flat map

4 votes
Accepted

Frobenius splitting for an excellent, non $F$-finite, $F$-pure hypersurface

4 votes

Relationship between the notions of "excellent ring" and "universally catenary Nagata ring"

10 votes

On Noetherian and Japanese rings

8 votes
Accepted

local UFD with dimension less than or equal 3 is catenary

2 votes
Accepted

Proving that a morphism between power series rings is regular

7 votes
Accepted

Looking for a simple one-dimensional noetherian domain whose regular locus is not open

4 votes
Accepted

Is completion of isolated singularity isolated?

6 votes
Accepted

Birational Invariants of regular surfaces

3 votes
Accepted

Tie-Breaking Trick for Log Canonical Pairs and F-pure pairs in Positive Characteristic

15 votes

"Noetherian" and "finitely generated" for polynomial algebras

2 votes

Geometric regularity for infinitely generated field extensions

1 vote
Accepted

Differentiability of restricted volumes of big divisors

4 votes
Accepted

Degree Bound in Bend and Break Lemmas

2 votes

Morphisms preserving weak normality

0 votes

Is weak normality stable under completion?

6 votes
Accepted

Bertini's type theorems over imperfect fields

2 votes
Accepted

Conditions for a smooth scheme of finite type with trivial class group to be quasi-affine

4 votes
Accepted

Structure sheaf of affine variety consists of noetherian rings (again)