User name

15 votes

3 answers

3k views

State of the art for Gersten's conjecture for K-theory?

asked Dec 6, 2011 at 11:33

13 votes

2 answers

1k views

Is the derived category of abelian groups a subcategory of the stable homotopy category?

asked Jan 29, 2013 at 17:37

7 votes

0 answers

389 views

Why the $M$ for Thom spaces?

asked Apr 6, 2012 at 10:03

7 votes

2 answers

512 views

Is the reduction of a flat, finite, surjective scheme over an integral base still flat?

asked Apr 13, 2011 at 17:29

6 votes

1 answer

635 views

Commuting Grothendieck topologies.

asked Nov 4, 2011 at 17:29

6 votes

1 answer

2k views

Does there exist a name for a nonassociative "category" without identities?

asked Dec 3, 2011 at 0:22

6 votes

0 answers

517 views

Does this Grothendieck topology have a name?

asked Apr 6, 2012 at 10:16

4 votes

2 answers

907 views

Proving associativity relations by using a group acting on a set of trees?

asked Dec 8, 2011 at 6:12

4 votes

2 answers

1k views

Is the normalisation of an integral noetherien dimension one ring a finite morphism?

asked Dec 16, 2011 at 15:03

4 votes

1 answer

382 views

Is the subspace of DVR's of the Zariski-Riemann space still quasi-compact?

asked Sep 18, 2011 at 7:06

4 votes

0 answers

367 views

criteria for reduced fibres

asked Mar 4, 2011 at 19:22

3 votes

0 answers

401 views

Is there a name for a morphism of schemes which is an inverse limit of schemes such that the transition maps are all open immersions?

asked Apr 6, 2012 at 10:18

2 votes

0 answers

134 views

Infinitesimal lifting for hensel schemes?

asked Oct 4, 2011 at 17:14

2 votes

0 answers

505 views

Reference for properties of strict/proper transform?

asked May 10, 2011 at 13:26

2 votes

1 answer

325 views

Gersten for homotopy invariant K-theory of non-singular varieties.

asked Jun 23, 2011 at 16:42

2 votes

2 answers

310 views

Can normalisations of curves over a perfect field change residue fields?

asked Aug 17, 2011 at 22:27

2 votes

1 answer

429 views

Nisnevich points

asked Sep 14, 2011 at 20:34

1 vote

2 answers

527 views

Are hensel valuation rings N2?

asked Mar 11, 2013 at 17:05

1 vote

2 answers

233 views

Detecting zero morphisms via an open subscheme and its complement.

asked Mar 10, 2012 at 4:20

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19 Questions

State of the art for Gersten's conjecture for K-theory?

Is the derived category of abelian groups a subcategory of the stable homotopy category?

Why the $M$ for Thom spaces?

Is the reduction of a flat, finite, surjective scheme over an integral base still flat?

Commuting Grothendieck topologies.

Does there exist a name for a nonassociative "category" without identities?

Does this Grothendieck topology have a name?

Proving associativity relations by using a group acting on a set of trees?

Is the normalisation of an integral noetherien dimension one ring a finite morphism?

Is the subspace of DVR's of the Zariski-Riemann space still quasi-compact?

criteria for reduced fibres

Is there a name for a morphism of schemes which is an inverse limit of schemes such that the transition maps are all open immersions?

Infinitesimal lifting for hensel schemes?

Reference for properties of strict/proper transform?

Gersten for homotopy invariant K-theory of non-singular varieties.

Can normalisations of curves over a perfect field change residue fields?

Nisnevich points

Are hensel valuation rings N2?

Detecting zero morphisms via an open subscheme and its complement.