Sean Tilson

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2,443 reputation

717

bio	website	none
	location	Detroit, MI
	age	28
visits	member for	2 years, 9 months
	seen	May 13 at 21:06
stats	profile views	595

I am a grad student at Wayne State University studying homotopy theory.

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15 Favorites

added views newest activity votes

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22

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Is every Compact $n$-Manifold a Compactification of $\mathbb{R}^n$?

differential-geometry differential-topology

jan 22 '11 at 20:22 George Lowther 11.5k

3

15

votes

1

answer

291

views

Does every l.e.s. “in homology” come from a s.e.s. of complexes?

homological-algebra

apr 6 at 13:53 Martin 3,688

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12

votes

5

answers

512

views

An example of a scheme in the language of schemes

intuition algebraic-geometry

dec 6 '10 at 18:26 George S. 1,746

3

12

votes

1

answer

326

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Stacks are just sheaves up to Isomorphism

intuition algebraic-geometry

jul 29 '10 at 0:57 Larry Wang 2,864

6

8

votes

3

answers

344

views

Computing stalks: do direct limits behave like limits?

commutative-algebra

aug 4 '10 at 17:12 Agustí Roig 8,060

6

8

votes

4

answers

913

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Meaning of closed points of a scheme

intuition algebraic-geometry

feb 1 '11 at 11:30 Fitzcarraldo 43

3

8

votes

2

answers

85

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Explicit formula for the curvaure of a connection

differential-geometry vector-bundles curvature

jan 26 '12 at 20:56 Lucas Kaufmann 581

4

8

votes

2

answers

542

views

What does the Hodge conjecture mean?

algebraic-geometry algebraic-topology open-problem

jul 2 at 11:54 David Speyer 18.6k

2

7

votes

1

answer

312

views

What is the commutative analogue of a $C^*$-subalgebra?

functional-analysis noncommutative-geometry c-star-algebras

aug 15 '10 at 13:17 Rasmus 9,458

2

6

votes

2

answers

271

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Which continuous functions are polynomials?

algebraic-geometry general-topology differential-topology

aug 15 '10 at 9:34 Community♦ 1

1

6

votes

1

answer

121

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The A^1-localization in the unstable motivic category

algebraic-geometry algebraic-topology homotopy-theory

may 27 '12 at 16:01 SL2 2,810

3

6

votes

4

answers

387

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What do higher cohomologies mean concretely (in various cohomology theories)?

cohomology group-cohomology

sep 13 '11 at 19:06 mt_ 3,978

2

4

votes

3

answers

534

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Topology of a cone of RP^2

algebraic-topology

oct 19 '10 at 21:56 Mariano Suárez-Alvarez♦ 53.2k

2

4

votes

2

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227

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cup products and smash products

algebraic-topology homotopy-theory

nov 19 '11 at 20:50 Jacob Bell 305

2

3

votes

1

answer

304

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Why does this particular Serre spectral sequence collapse at the $E_{k+2}$-page?

algebraic-topology

jun 9 '11 at 2:09 Zev Chonoles 53.5k

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