User Jose Capco

127 votes

19 answers

69k views

Periods and commas in mathematical writing

asked Nov 24, 2009 at 11:00

108 votes

9 answers

35k views

How do you not forget old math?

asked Sep 27, 2013 at 7:46

24 votes

5 answers

3k views

Applications of the "other" definition of sheaves

asked Nov 22, 2009 at 19:22

16 votes

6 answers

2k views

Can any topological space be the result of a scheme?

asked Oct 27, 2009 at 4:52

13 votes

3 answers

722 views

Julia sets using other fields

asked Nov 16, 2011 at 9:38

9 votes

2 answers

817 views

How did height in algeb. number theory/elliptic curves started?

asked Sep 11, 2014 at 10:27

9 votes

1 answer

902 views

Residue class sufficiency sets for the Collatz conjecture

asked Jul 22, 2015 at 5:48

8 votes

0 answers

221 views

Nearest point to a real algebraic set

asked Dec 9, 2014 at 13:55

8 votes

2 answers

2k views

Characterisation for separable extension of a field

asked Oct 28, 2009 at 9:19

7 votes

1 answer

730 views

Non-normal domain with algebraically closed fraction field

asked Apr 9, 2011 at 17:38

6 votes

2 answers

602 views

What is new in MSC 2010?

asked Nov 2, 2009 at 12:21

6 votes

1 answer

226 views

Constructing M-curves à la Hilbert

asked Nov 14, 2020 at 17:55

5 votes

2 answers

2k views

3n+1 problem and cycles

asked Aug 3, 2014 at 22:27

5 votes

2 answers

745 views

Integrally closed factor rings and projective modules

asked Nov 5, 2009 at 23:52

5 votes

5 answers

2k views

Fractal questions: Weierstraß-Mandelbrot

asked Jul 13, 2011 at 10:29

4 votes

0 answers

693 views

Artin Schreier Theorem for Rings

asked Jan 2, 2010 at 2:30

3 votes

1 answer

369 views

Weaker form of irreducible surjections

asked Jul 11, 2010 at 8:07

3 votes

0 answers

315 views

On a conjecture of Hartshorne

asked Mar 6, 2022 at 19:21

3 votes

0 answers

53 views

Points of intersection of summand of sums of squares of real polynomials

asked Jun 1, 2018 at 5:25

2 votes

1 answer

200 views

Normal reduced rings

asked Aug 23, 2016 at 17:59

2 votes

2 answers

276 views

ring of idempotents of the integral extension of a ring

asked Mar 23, 2011 at 5:15

2 votes

1 answer

260 views

Spectra of rings that are projective module over a subring

asked Nov 17, 2009 at 17:49

1 vote

1 answer

329 views

Constructing a convex valuation ring/ordered group of rank $n$

asked Dec 18, 2009 at 2:02

1 vote

3 answers

2k views

Various Cartan's Lemmata

asked Nov 10, 2009 at 12:15

1 vote

4 answers

2k views

Reduced rings, idempotents and their prime spectrum

asked Jul 24, 2010 at 12:36

1 vote

1 answer

229 views

Cremona transformation of (real) elliptic curves

asked Apr 17, 2023 at 15:45

1 vote

0 answers

77 views

refining a coherent triangulation

asked May 20, 2021 at 11:30

0 votes

1 answer

92 views

Extending binary operation used by homotopy classes

asked Apr 1, 2014 at 12:25

0 votes

1 answer

164 views

Need a reference for cones and limits that does this...

asked Jun 18, 2010 at 22:00

-3 votes

3 answers

381 views

Dense section of sheaves of modules

asked Nov 18, 2009 at 20:25

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30 Questions

Periods and commas in mathematical writing

How do you not forget old math?

Applications of the "other" definition of sheaves

Can any topological space be the result of a scheme?

Julia sets using other fields

How did height in algeb. number theory/elliptic curves started?

Residue class sufficiency sets for the Collatz conjecture

Nearest point to a real algebraic set

Characterisation for separable extension of a field

Non-normal domain with algebraically closed fraction field

What is new in MSC 2010?

Constructing M-curves à la Hilbert

3n+1 problem and cycles

Integrally closed factor rings and projective modules

Fractal questions: Weierstraß-Mandelbrot

Artin Schreier Theorem for Rings

Weaker form of irreducible surjections

On a conjecture of Hartshorne

Points of intersection of summand of sums of squares of real polynomials

Normal reduced rings

ring of idempotents of the integral extension of a ring

Spectra of rings that are projective module over a subring

Constructing a convex valuation ring/ordered group of rank $n$

Various Cartan's Lemmata

Reduced rings, idempotents and their prime spectrum

Cremona transformation of (real) elliptic curves

refining a coherent triangulation

Extending binary operation used by homotopy classes

Need a reference for cones and limits that does this...

Dense section of sheaves of modules