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Eric Wofsey

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29,139

29.1k
27.4k
25.7k

2018
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reference-request

160/100 score

17/20 answers

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2

102

144

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Enlightened

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15 posts edited

97 helpful flags

4,297 votes cast

Answers (265)

Votes Activity Newest

64	What are some reasonable-sounding statements that are independent of ZFC?
61	Can anyone give me a good example of two interestingly different ordinary cohomology theories?
56	Cohomology and fundamental classes
54	understanding Steenrod squares
43	Is every functor a composition of adjoint functors?

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Reputation (29,139)

+10	Linear transformation that preserves the determinant
+10	Must a closed totally path-disconnected subset of the sphere have connected complement?
+10	understanding Steenrod squares
+10	Do the signs in Puppe sequences matter?

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Questions (11)

Votes Activity Newest

34	How can you tell if a space is homotopy equivalent to a manifold?
29	Do the signs in Puppe sequences matter?
23	Which spaces have the (weak) homotopy type of compact Hausdorff spaces?
16	When can you desuspend a homotopy cogroup?
13	Commutativity in K-theory and cohomology

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Tags (165)

638 at.algebraic-topology × 59	199 cohomology × 12
601 gn.general-topology × 54	188 set-theory × 22
543 ct.category-theory × 54	166 ag.algebraic-geometry × 21
261 homotopy-theory × 27	160 reference-request × 17
203 ac.commutative-algebra × 25	119 gt.geometric-topology × 9

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Bookmarks (7)

Votes Activity Newest Views Added

108	Slick proof?: A vector space has the same dimension as its dual if and only if it is finite dimensional
89	$A$ is isomorphic to $A \oplus \mathbb{Z}^2$, but not to $A \oplus \mathbb{Z}$
46	Open affine subscheme of affine scheme which is not principal
41	Is it true that, as $\Bbb Z$-modules, the polynomial ring and the power series ring over integers are dual to each other?
38	Is every connected scheme path connected?

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Accounts (10)

	Mathematics	266,680 rep	20 gold badges315 silver badges496 bronze badges
	MathOverflow	29,139 rep	2 gold badges102 silver badges144 bronze badges
	Meta Stack Exchange	171 rep	8 bronze badges
	English Language Learners	101 rep	4 bronze badges
	English Language & Usage	101 rep	4 bronze badges

Badges (52)

Recent Class Name

Enlightened × 52	set-theory
Nice Answer × 96	Yearling × 11
Constituent × 2	Announcer × 3
Caucus × 2	Popular Question × 5
Good Answer × 19	Lifejacket

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Votes cast (4,297)

all time			by type			month
3,407	up		1,976	question		3
890	down		2,321	answer		3

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