User stjc

42 votes

3 answers

10k views

What does the Lefschetz principle (in algebraic geometry) mean exactly?

asked Mar 8, 2012 at 6:36

10 votes

1 answer

1k views

On condition when the push-forward of coherent sheaf is locally free

asked Nov 23, 2012 at 14:05

9 votes

1 answer

589 views

Relation between dualization complex, cotangent complex and Deligne-Du Bois complex?

asked Mar 9, 2015 at 14:20

8 votes

2 answers

943 views

Is there non-simple-connected projective variety(over C) with trivial etale fundamental group?

asked Apr 4, 2013 at 8:38

6 votes

1 answer

784 views

relative resolution of singularity

asked Apr 9, 2013 at 2:32

4 votes

1 answer

542 views

Does cohomology of coherent sheaves on an complex analytic space commute with coproduct?

asked Aug 20, 2016 at 8:07

4 votes

3 answers

778 views

Is there a classification of surface(smooth and projective) over arbitrary field?

asked Feb 24, 2012 at 13:25

3 votes

0 answers

154 views

rational homotopy type and cohomological vanishing for local systems

asked Jun 1, 2018 at 1:44

3 votes

0 answers

365 views

Relative amplitude of the exceptional divisor

asked Sep 10, 2018 at 7:50

3 votes

0 answers

444 views

Is the Picard number bounded by $b_2$ in positive characteristic?

asked Nov 25, 2013 at 13:54

2 votes

0 answers

580 views

Is there a D-module theory in characteristic p>0

asked Sep 24, 2014 at 12:57

2 votes

0 answers

25 views

About the Lipschitz property of stratified analytic, arc-analytic and semianalytic map

asked Oct 23, 2020 at 8:47

1 vote

0 answers

28 views

Stratification which makes the defining functions isotrivial

asked Oct 26, 2020 at 10:45

1 vote

0 answers

23 views

lifting of control data along a stratified morphism

asked Oct 30, 2020 at 2:15

1 vote

2 answers

317 views

Differential construction of mixed Hodge structure on smooth open varieties

asked Nov 13, 2018 at 7:37

1 vote

1 answer

337 views

Kunneth formular with coefficients the constructible sheaves

asked Mar 30, 2018 at 4:39

1 vote

1 answer

192 views

Picard number of fundamental divisor of Fano 3-fold

asked Nov 4, 2013 at 15:33

0 votes

1 answer

244 views

How to define intersection of coherent sheaf and 1-cycle?

asked Apr 2, 2013 at 2:50

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18 Questions

What does the Lefschetz principle (in algebraic geometry) mean exactly?

On condition when the push-forward of coherent sheaf is locally free

Relation between dualization complex, cotangent complex and Deligne-Du Bois complex?

Is there non-simple-connected projective variety(over C) with trivial etale fundamental group?

relative resolution of singularity

Does cohomology of coherent sheaves on an complex analytic space commute with coproduct?

Is there a classification of surface(smooth and projective) over arbitrary field?

rational homotopy type and cohomological vanishing for local systems

Relative amplitude of the exceptional divisor

Is the Picard number bounded by $b_2$ in positive characteristic?

Is there a D-module theory in characteristic p>0

About the Lipschitz property of stratified analytic, arc-analytic and semianalytic map

Stratification which makes the defining functions isotrivial

lifting of control data along a stratified morphism

Differential construction of mixed Hodge structure on smooth open varieties

Kunneth formular with coefficients the constructible sheaves

Picard number of fundamental divisor of Fano 3-fold

How to define intersection of coherent sheaf and 1-cycle?