Pierre-Yves Gaillard

network profile

731 reputation

21322

bio	website	iecl.univ-lorraine.fr/…
	location	Nancy, France
	age	63
visits	member for	4 years, 6 months
	seen	2 hours ago
stats	profile views	2,821

Email: pierre.yves.gaillard at gmail.com

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26 Answers

votes activity newest

33	Quick proofs of hard theorems
11	“Sums-compact” objects = f.g. objects in categories of modules?
11	Examples of common false beliefs in mathematics.
7	Applications of the Chinese remainder theorem
7	Cardinality of the permutations of an infinite set

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731 Reputation

+70	a naive question about the second dual of a vector space
+10	Taylor's theorem and the symmetric group
+20	Why are (pre)sheaves defined as contravariant functors? Why not just reverse the arrows in the first place?
+10	“Sums-compact” objects = f.g. objects in categories of modules?

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6 Questions

votes activity newest

68	What if Current Foundations of Mathematics are Inconsistent? [closed]
15	What is your favorite proof of Tychonoff's Theorem?
14	a naive question about the second dual of a vector space
5	Generators of a certain ideal
4	Are there locally compact groups which have no compact open subgroups and no discrete infinite cyclic subgroups?

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37 Tags

15 ct.category-theory × 4	9 linear-algebra × 3
15 ra.rings-and-algebras × 2	9 set-theory × 2
11 modules × 2	5 gn.general-topology × 2
11 homological-algebra × 2	4 ac.commutative-algebra × 3
10 nt.number-theory × 4	4 ho.history-overview × 3

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19 Accounts

	Mathematics	9,205 rep	21347
	MathOverflow	731 rep	21322
	TeX - LaTeX	145 rep	5
	Stack Overflow	101 rep	1
	Super User	101 rep	2

28 Badges

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Nice Question × 3	Informed
Announcer	Excavator
Constituent	Good Answer
Caucus	Yearling × 3
Nice Answer × 3	Self-Learner

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