Pham Hung Quy's user avatar
Pham Hung Quy's user avatar
Pham Hung Quy's user avatar
Pham Hung Quy
  • Member for 12 years, 6 months
  • Last seen more than a week ago
  • Hanoi
24 votes

Is the radical of an irreducible ideal irreducible?

9 votes
Accepted

Is an irreducible ideal in $R$ also irreducible in $R[x]$?

8 votes
Accepted

quotient of integral polynomials not being integral

8 votes
Accepted

Can a zerodivisor reduce both the depth and the dimension?

6 votes
Accepted

Depth of ideals in a commutative ring

5 votes
Accepted

On the Completion of a complete local ring

4 votes

Lengths over a local ring

3 votes

Castelnuovo-Mumford regularity and degree of generator.

3 votes
Accepted

injectivity of torsion submodules of injectives

3 votes
Accepted

lim Ext(a^n/b^n,R)=0

3 votes

How to use Nakayama

3 votes

Dimension of a ring after localization

3 votes

Graded-irreducible ideals are irreducible?

2 votes

The finiteness of the associated primes of $Ext^i_R(R/I, M)$

2 votes

Colon property of Gorenstein rings

2 votes

invariants that can be measured by Local Cohomology

2 votes
Accepted

Is there a characterization of r(M) by local cohomology instead of Ext

2 votes
Accepted

Is $Hom_R(S_X^{-1}R, E)$ the minimal injective cogenerator of $S_X^{-1}R$?

2 votes

Depth of modules and regular sequences of endomorphisms

2 votes

two polynomials

2 votes
Accepted

uniform bound of the number of generators of prime ideals

2 votes
Accepted

Do the classes of cotorsion and strongly cotorsion modules coincide?

1 vote
Accepted

A construction of tensor product (Coutinho's book: D-module)

1 vote
Accepted

Is there a prime of height $i$ in support of $H^i_I(R)$?

1 vote

Criteria for system of parameters in polynomial rings

1 vote
Accepted

Minimal length of quotient by parameter ideals

1 vote
Accepted

Analytic spread of localization of an ideal

1 vote

Maximal Cohen-Macaulay modules of type one

1 vote
Accepted

Ring with Cohen-Macaulay canonical module

0 votes
Accepted

Colon operation after adjoint variables