User Fei YE

19

26

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3

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2k

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Geometry meaning of higher cohomology of sheaves?

ag.algebraic-geometry

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18

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3

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ag.algebraic-geometry

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9

12

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7

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3k

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Is there any rational curve on an Abelian variety?

ag.algebraic-geometry abelian-varieties

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When is an algebraic variety $\mathbb{Q}$-factorial?

ag.algebraic-geometry

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12

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snake lemma in category of groups

ct.category-theory

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3

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Mar 21 '19 at 5:54 Ning JIANG 109

7

8

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3

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ag.algebraic-geometry ac.commutative-algebra

Aug 11 '12 at 0:26 user22479 715

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7

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2k

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How to resolve a wedge product of vector bundles

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Oct 13 '10 at 7:26 Chris Brav 1,759

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6

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Equivalent definitions of arithmetically Cohen-Macaulay varieties

ag.algebraic-geometry ac.commutative-algebra

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3

6

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1

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1k

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ag.algebraic-geometry

Mar 25 '12 at 11:36 Community♦ 1

6

5

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1

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3k

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Finite morphisms between algebraic varieties are flat?

ag.algebraic-geometry

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Smooth projective varieties of Picard number one

ag.algebraic-geometry

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Serre type vanishing theorem of coherent sheaves on quasi-projective variety?

ag.algebraic-geometry ac.commutative-algebra

Oct 3 '10 at 0:51 Sándor Kovács 39.7k

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1

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3k

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Algebraic equivalence VS Numerical Equivalence - An Example.

ag.algebraic-geometry algebraic-surfaces algebraic-cycles

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1

4

votes

0

answers

142

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Nomality of blow-ups of higher dimensional rational singularities

ag.algebraic-geometry

Jan 20 '19 at 20:17 Fei YE 2,278

2

4

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1

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273

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multiplicities of rational singularities in higher dimension

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Cohen-Macaulay sheaves which are not locally free

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1

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Derived categories of symmetric products

ag.algebraic-geometry

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1

4

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2

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468

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Vanishing of Self-Ext groups of vector bundles

ag.algebraic-geometry tag-removed vector-bundles

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4

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3

answers

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ag.algebraic-geometry

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3

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2k

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Multiplicity of a singular point

ag.algebraic-geometry ac.commutative-algebra

Jul 19 '11 at 23:35 Qing Liu 10.6k

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3

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4

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1k

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Can $\mathbb{P}^n$ be regarded as an algebraic vector bundle over some algebraic variety?

ag.algebraic-geometry vector-bundles

Aug 3 '10 at 1:49 Charles Staats 6,830

1

3

votes

1

answer

634

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dg.differential-geometry gt.geometric-topology

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ag.algebraic-geometry

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co.combinatorics ag.algebraic-geometry

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Curves on elliptic ruled surfaces?

ag.algebraic-geometry elliptic-curves

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371

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Dimension and singularities of the minimal log canonical center

ag.algebraic-geometry

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1

vote

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answer

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ac.commutative-algebra ag.algebraic-geometry

May 30 '12 at 4:41 Fei YE 2,278

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37 Questions

Geometry meaning of higher cohomology of sheaves?

Evidences on Hartshorne's conjecture? References?

Why do automorphism groups of algebraic varieties have natural algebraic group structure?

Is there any rational curve on an Abelian variety?

When is an algebraic variety $\mathbb{Q}$-factorial?

snake lemma in category of groups

Why a subvariety of a variety of general type is of general type

Punctured spectrums of local rings

How to resolve a wedge product of vector bundles

Equivalent definitions of arithmetically Cohen-Macaulay varieties

Direct summands of direct sum of line bundles on projective varieties

Finite morphisms between algebraic varieties are flat?

Smooth projective varieties of Picard number one

Serre type vanishing theorem of coherent sheaves on quasi-projective variety?

Algebraic equivalence VS Numerical Equivalence - An Example.

Nomality of blow-ups of higher dimensional rational singularities

multiplicities of rational singularities in higher dimension

Cohen-Macaulay sheaves which are not locally free

Derived categories of symmetric products

Vanishing of Self-Ext groups of vector bundles

Degree of an embedded algebraic variety

Multiplicity of a singular point

Can $\mathbb{P}^n$ be regarded as an algebraic vector bundle over some algebraic variety?

Proof of a Theorem in the paper “Construction of bundles on P^n” by Horrocks

Homotopy classes of differential maps VS those of continuous maps

Differentiability of restricted volumes of big divisors

Minimal number of nodes in a complex line arrangement.

Curves on elliptic ruled surfaces?

Dimension and singularities of the minimal log canonical center

Ext modules of coherent sheaves and associated modules