Gregory Arone's user avatar
Gregory Arone's user avatar
Gregory Arone's user avatar
Gregory Arone
  • Member for 13 years, 9 months
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26 votes
1 answer
598 views

What is the minimal dimension of a complex realising a group representation?

23 votes
3 answers
1k views

Is it possible to construct an action of an $E_\infty$ operad on $BU$ that respects filtration by $BU(n)$?

21 votes
2 answers
1k views

Is the J homomorphism compatible with the EHP sequence?

18 votes
0 answers
642 views

Are simplicial finite CW complexes and simplicial finite simplicial sets equivalent?

18 votes
1 answer
1k views

What are cospectra, and why have they received so little attention?

14 votes
1 answer
365 views

Is it possible to classify finite dimensional vector bundles in terms of Fredholm operators?

8 votes
1 answer
568 views

What is the right notion of a functor from an internal topological category to topological spaces?

7 votes
2 answers
439 views

Can one compare monads arising from homotopy equivalent adjunctions?

7 votes
0 answers
167 views

Does a homological Segal condition make sense?

6 votes
0 answers
178 views

Does combinatorial deleted product become equivalent to the topological deleted product after enough subdivision?

6 votes
2 answers
419 views

What are the naive fixed points of a non-naive smash product of a spectrum with itself?

3 votes
0 answers
142 views

Confused about the proof of a lemma about deleted products

2 votes
0 answers
129 views

Decomposing a metric tree as a union of rooted (or "centered") trees