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Oscar Randal-Williams's user avatar
Oscar Randal-Williams's user avatar
Oscar Randal-Williams
  • Member for 15 years, 2 months
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Reference for computing cohomology of $Q_nS^0$ (the $n$-th component of infinite loop space)?
It's a loop space, so the path components are all homotopy equivalent to each other.
awarded
 Yearling
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Is Morava K-theory of a classifying space of a compact Lie group a Noetherian ring?
@DrewHeard: I don't think that matters, because the multiplication on $E^*(BU(n))$ happens to be commutative, and everything else is only considered as a left module over that.
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Is Morava K-theory of a classifying space of a compact Lie group a Noetherian ring?
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A roof genus of high dimensional lens space
Isn't the A-hat genus zero for manifolds whose dimension is not divisible by 4, more or less by definition?
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Steenrod powers of the Thom class
I would guess it is a typo. The later calculation $F^*(St^8_5 \iota) = U \cdot ((P_4)^2 - 2 P_8)$ for p=5 fits with what I wrote.
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 Enlightened
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 Nice Answer
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Steenrod powers of the Thom class
revised
Group completion of a monoid (braid groups)
added 105 characters in body
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Group completion of a monoid (braid groups)
awarded
 Nice Answer
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Structure of second homotopy group of a compact CW complex
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 Good Answer
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 Yearling
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 Nice Answer
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 Notable Question
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Euler class of vertical tangent bundle of the surface bundle over circle
asked
The graded multiplication on topological $K$-theory
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 Enlightened
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