Skip to main content

All Questions

6 votes
1 answer
550 views

Cobordism cohomology of Lie groups

Are there any results about cobordism cohomology of Lie groups?For example, $\mathrm{MU}^*(\mathrm{SU}(n))$.
wushilp's user avatar
  • 61
4 votes
1 answer
179 views

(Algebraic) cobordism and the rank function

I write the question for algebraic cobordism but I have the analogue question for classic cobordism. The spectrum representing algebraic cobordism $$ \mathbf{MGL}=(*, \mathrm{Th}(1) , \ldots , \mathrm{...
Tintin's user avatar
  • 2,811
10 votes
2 answers
2k views

Sphere spectrum, Character dual and Anderson dual

The homotopy groups of the sphere spectrum are the stable homotopy groups of spheres. However, could you help me to appreciate the mathematical meanings of the following: What is the significance of ...
wonderich's user avatar
  • 10.4k
25 votes
0 answers
635 views

Chromatic Spectra and Cobordism

I apologize in advance, if some of the things I've written are incorrect. The cobordism hypothesis states that $\mathbf{Bord}^\mathrm{fr}_n$ is the free symmetric monoidal $(\infty,n)$-category with ...
Nerses Aramian's user avatar
14 votes
1 answer
529 views

Does the signature admit a homotopy coherent refinement?

Cobordism genera can often be refined to $E_\infty$-orientations in the sense of Ando-Blumberg-Gepner-Hopkins-Rezk: 1) the mod 2 Euler characteristic $MO\to H\mathbb{F}_2$; 2) the $\widehat A$-genus ...
Ben Knudsen's user avatar