User Hailong Dao

5 votes

primary regular sequences

answered Nov 22, 2010 at 2:46

4 votes

Universities not listed on mathjobs

answered Nov 26, 2010 at 4:53

4 votes

Why are principal ideal domains and Dedekind domains prominent, but I always seem to see Noetherian rings rather than Noetherian domains?

answered Dec 19, 2010 at 22:20

4 votes

Non finitely generated graded ring of a divisor in dimension >2

answered Feb 24, 2011 at 7:39

4 votes

Are schematic fixed-points of a Cohen-Macaulay scheme Cohen-Macaulay?

answered Oct 25, 2010 at 22:32

4 votes

Accepted

Are squarefree monomial ideals on a regular system of parameters in a regular local ring radical?

answered Feb 14, 2011 at 16:26

4 votes

Flatness on the fiber

answered Sep 22, 2010 at 19:11

4 votes

What does a projective resolution mean geometrically?

answered Oct 20, 2010 at 2:51

4 votes

Accepted

Algebraic, analytic, formal modules

answered Aug 7, 2010 at 3:12

4 votes

Singular points of an irreducible polynomial

answered Apr 5, 2010 at 22:06

4 votes

$K_{0}(R) =\mathbb{Z}$ but some f.g. projective not stably free?

answered Jun 10, 2010 at 5:30

4 votes

The inverse limit of locally free module

answered Dec 27, 2009 at 8:55

4 votes

Accepted

About the intersection of two vector bundles

answered Dec 6, 2009 at 0:25

4 votes

Accepted

About maximal Cohen-Macaulay modules

answered Dec 16, 2009 at 2:10

4 votes

Accepted

Evidences on Hartshorne's conjecture? References?

answered Feb 3, 2010 at 17:21

4 votes

Accepted

Reference for cohomology vanishing

answered Feb 5, 2010 at 17:33

4 votes

Given an integer $N$, find solutions to $X^3 + Y^3 + Z^3 - 3XYZ \equiv 1 \pmod{N}$

answered Mar 21, 2021 at 6:12

4 votes

Accepted

Terminology/literature for $\forall I\leq A,\; IB\cap A=I$

answered Feb 16, 2022 at 13:00

4 votes

Ideals invariant under ring automorphisms

answered Dec 15, 2018 at 21:42

4 votes

Minimum number of generators of the product of ideals

answered Jan 12, 2021 at 19:29

4 votes

Accepted

flatness and reduction

answered Oct 6, 2020 at 19:21

4 votes

Flatness of normalization

answered May 12, 2011 at 15:55

4 votes

Accepted

Singular curves in a 3-fold?

answered Jul 19, 2011 at 14:21

4 votes

Dimension 1 prime ideals in the intersection of two maximal ideals

answered Jul 28, 2011 at 16:39

4 votes

Accepted

Extensions of torsion modules

answered Jun 19, 2011 at 15:33

4 votes

Where can I find the divisor class groups of du Val singularities?

answered Aug 9, 2011 at 15:38

4 votes

Torsion-free tensor powers

answered Aug 18, 2011 at 16:13

4 votes

Why depth, dimension, etc?

answered Jul 20, 2012 at 16:11

4 votes

Additive integer-valued functions on the module category

answered Aug 3, 2012 at 14:33

4 votes

Applications of Zariski topology outside alg. geometry

answered Mar 10, 2012 at 2:47

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269 Answers

primary regular sequences

Universities not listed on mathjobs

Why are principal ideal domains and Dedekind domains prominent, but I always seem to see Noetherian rings rather than Noetherian domains?

Non finitely generated graded ring of a divisor in dimension >2

Are schematic fixed-points of a Cohen-Macaulay scheme Cohen-Macaulay?

Are squarefree monomial ideals on a regular system of parameters in a regular local ring radical?

Flatness on the fiber

What does a projective resolution mean geometrically?

Algebraic, analytic, formal modules

Singular points of an irreducible polynomial

$K_{0}(R) =\mathbb{Z}$ but some f.g. projective not stably free?

The inverse limit of locally free module

About the intersection of two vector bundles

About maximal Cohen-Macaulay modules

Evidences on Hartshorne's conjecture? References?

Reference for cohomology vanishing

Given an integer $N$, find solutions to $X^3 + Y^3 + Z^3 - 3XYZ \equiv 1 \pmod{N}$

Terminology/literature for $\forall I\leq A,\; IB\cap A=I$

Ideals invariant under ring automorphisms

Minimum number of generators of the product of ideals

flatness and reduction

Flatness of normalization

Singular curves in a 3-fold?

Dimension 1 prime ideals in the intersection of two maximal ideals

Extensions of torsion modules

Where can I find the divisor class groups of du Val singularities?

Torsion-free tensor powers

Why depth, dimension, etc?

Additive integer-valued functions on the module category

Applications of Zariski topology outside alg. geometry