Urs Schreiber's user avatar
Urs Schreiber's user avatar
Urs Schreiber's user avatar
Urs Schreiber
  • Member for 14 years, 5 months
  • Last seen more than a week ago
36 votes
0 answers
865 views

Chern character of a Representation

26 votes
1 answer
2k views

What is to tmf as KR is to KO?

25 votes
0 answers
1k views

Calabi-Yau cohomology?

24 votes
0 answers
1k views

p-Adic String Theory and the String-orientation of Topological Modular Forms (tmf)

23 votes
3 answers
1k views

KK-theory as a stable infinity-category and KU Mod

23 votes
1 answer
1k views

function field analogy and global/absolute geometry

20 votes
3 answers
2k views

Étale homotopy type of non-archimedean analytic spaces

18 votes
5 answers
2k views

Model structure of commutative dg-algebras inside all dg-algebras

18 votes
0 answers
391 views

Elliptic $\infty$-line bundles over $B G$

17 votes
2 answers
2k views

Differential operators are coKleisli morphisms of the jet co-monad

16 votes
2 answers
2k views

"synthetic" reasoning applied to algebraic geometry

15 votes
0 answers
453 views

"topological" Ochanine genus?

14 votes
0 answers
722 views

Cohesive ∞-toposes for analytic geometry

14 votes
1 answer
471 views

Localizing $\mathrm{CombModCat}$ at the Quillen equivalences

13 votes
1 answer
455 views

Stable Cohomotopy as $K \mathbb{F}_1$

12 votes
0 answers
337 views

K-theoretic version of Artin-Mazur formal groups?

12 votes
1 answer
628 views

Nonunital $E_\infty$-rings

12 votes
0 answers
386 views

Artin L-function and Zeta function of twisted Dirac operator

12 votes
1 answer
609 views

Diffeomorphisms and homotopy equivalences sliced over BO(n)

11 votes
0 answers
229 views

KK-theory by abelianized correspondences of smooth stacks?

11 votes
0 answers
261 views

Flat spherical orbifolds

11 votes
1 answer
310 views

equivariant stable class of quaternionic Hopf fibration in RO(G)-degrees of ADE-type

10 votes
2 answers
454 views

Rational parameterized spectra

10 votes
1 answer
296 views

NCG with all noncommutativity in a nilpotent ideal

10 votes
1 answer
351 views

Extended TFT with coefficients in spans in any $\infty$-topos

10 votes
0 answers
523 views

Singular chains as an HZ-module spectrum

9 votes
1 answer
754 views

Pull-push in Godin's HCFT for string topology

9 votes
1 answer
648 views

Compact space in site -> compact object in topos

9 votes
1 answer
791 views

Power operations and Lambda-structure-like lifts of Frobenius in $E_\infty$-geometry?

9 votes
0 answers
181 views

Super-extensions of the Poincaré Lie algebra