User Nicolas Boerger

9

21

votes

3

answers

1k

views

Hermann Weyl's work on combinatorial topology and Kirchhoff's current law in Spanish

Mar 8 at 23:33 YCor 33.5k

11

votes

1

answer

184

views

Reference requests: Integral cohomology of $G_2$-homogeneous spaces

reference-request at.algebraic-topology lie-groups group-cohomology

Apr 22 at 13:43 user43326 2,495

10

votes

1

answer

543

views

Acyclic Finite Groups

at.algebraic-topology gr.group-theory gt.geometric-topology

Jan 31 '18 at 21:33 Nicolas Boerger 2,116

2

10

votes

0

answers

280

views

Steenrod Problem and realization of rational homology classes by manifolds

at.algebraic-topology gt.geometric-topology

Feb 8 '17 at 19:13 Nicolas Boerger 2,116

1

9

votes

1

answer

192

views

Topological Spin manifolds in dimension 4

at.algebraic-topology gt.geometric-topology cobordism spin-geometry surgery-theory

Nov 4 at 14:04 Mike Miller 5,583

4

9

votes

1

answer

296

views

Example of a finite group $G$ with low dimensional cohomology not generated by Stiefel-Whitney classes of flat vector bundles over $BG$

at.algebraic-topology rt.representation-theory group-cohomology

Mar 27 at 8:00 Community♦ 1

2

9

votes

1

answer

703

views

Status of Zeeman's collapsability Conjecture

at.algebraic-topology gt.geometric-topology discrete-geometry

May 2 '18 at 11:46 Dario 585

2

8

votes

1

answer

242

views

Atiyah Bott-Shapiro orientation Vs Anderson-Brown-Peterson Splitting

dg.differential-geometry at.algebraic-topology homotopy-theory

Feb 3 '18 at 4:41 David Roberts 25.2k

8

votes

1

answer

329

views

Morse Theory and proper actions

dg.differential-geometry

Mar 17 '14 at 16:51 Mark Grant 28.6k

2

7

votes

1

answer

225

views

Reference request: mod 2 cohomology of periodic KO theory

at.algebraic-topology kt.k-theory-and-homology stable-homotopy

Jul 24 at 17:15 Denis Nardin 11.7k

7

votes

1

answer

180

views

Five-dimensional manifolds fibering over a fixed hyperbolic surface

dg.differential-geometry at.algebraic-topology gt.geometric-topology mg.metric-geometry

Jun 12 '18 at 21:26 Igor Belegradek 22.8k

1

6

votes

1

answer

119

views

Example of nonvanishing Waldhausen Nil group

at.algebraic-topology gt.geometric-topology kt.k-theory-and-homology

Oct 29 '18 at 23:42 LSpice 3,594

1

6

votes

1

answer

270

views

Differential of homological atiyah-Hirzebruch Spectral sequence for K-homology

at.algebraic-topology

Nov 6 '14 at 22:48 Benjamin Antieau 4,518

6

votes

1

answer

346

views

Amenability as a geometric property

geometric-group-theory

Sep 8 '14 at 16:51 Community♦ 1

1

5

votes

0

answers

140

views

Higher homotopy groups and ramified covering maps [duplicate]

at.algebraic-topology gt.geometric-topology smooth-manifolds

Jan 10 '18 at 16:22 Nicolas Boerger 2,116

5

votes

1

answer

196

views

homological 2 dimensional groups

at.algebraic-topology gr.group-theory gt.geometric-topology

Jan 8 '16 at 14:41 Misha 28.2k

4

votes

1

answer

103

views

Enumeration of three dimensional spherical good orbifolds covered by Nil, sol and E3

reference-request gt.geometric-topology 3-manifolds

Jan 10 '18 at 22:06 YCor 33.5k

4

votes

0

answers

115

views

Spin bordism with non free involution

at.algebraic-topology homotopy-theory differential-topology spin-geometry equivariant-homotopy

Oct 12 '16 at 16:45 YCor 33.5k

4

votes

1

answer

246

views

Ends of Coxeter Groups

gr.group-theory gt.geometric-topology

Sep 10 '14 at 17:22 Nick Gill 9,946

1

4

votes

0

answers

250

views

Bordism and complex $K$-theory

at.algebraic-topology

Feb 3 '14 at 14:10 Nick Gill 9,946

1

3

votes

0

answers

100

views

Reference request :Conjugation action in the mod 2 cohomology of Integral Eilenberg Maclane spectrum

at.algebraic-topology homological-algebra

Aug 24 at 18:15 Nicolas Boerger 2,116

1

3

votes

0

answers

90

views

Extensive survey of computations of equivariant stable stems

reference-request at.algebraic-topology equivariant-homotopy

Jun 17 at 19:59 Nicolas Boerger 2,116

3

votes

0

answers

75

views

Reference Request: Equivariant Symplectic bordism

at.algebraic-topology homotopy-theory cobordism equivariant-homotopy

Aug 24 '18 at 21:40 Arun Debray 4,261

1

3

votes

2

answers

449

views

Reference for de Rham cohomology for physicists

dg.differential-geometry mp.mathematical-physics noncommutative-geometry

May 19 '17 at 17:24 user1504 1,093

3

votes

0

answers

130

views

Character Theory for quaternionic representations of finite groups

rt.representation-theory kt.k-theory-and-homology

Jan 20 '17 at 19:44 Nicolas Boerger 2,116

3

votes

1

answer

251

views

Reduced Vs unreduced cohomology in the parametrized setting.

at.algebraic-topology homotopy-theory

Jan 12 '17 at 3:29 Steve Costenoble 1,300

1

3

votes

2

answers

171

views

f vectors of simplicial complexes homeomorphic to n dimensional spheres

co.combinatorics at.algebraic-topology gt.geometric-topology

Dec 8 '15 at 1:30 Russ Woodroofe 2,846

3

votes

1

answer

170

views

Local cross sections for Unitary group in a hilbert space

oa.operator-algebras

Feb 25 '13 at 16:42 Ulrich Pennig 6,810

2

votes

0

answers

48

views

Cohomological dimension of closed $G$-invariant subspaces on homology manifolds with a group action

at.algebraic-topology gt.geometric-topology group-actions

Nov 29 at 18:33 Nicolas Boerger 2,116

2

votes

2

answers

144

views

Model for random graphs where clique number remains bounded

co.combinatorics pr.probability random-graphs

Oct 22 at 2:03 Vince Vatter 1,540

Stack Exchange Network

current community

your communities

more stack exchange communities

Next privilege

Next badge

39 Questions

Hermann Weyl's work on combinatorial topology and Kirchhoff's current law in Spanish

Reference requests: Integral cohomology of $G_2$-homogeneous spaces

Acyclic Finite Groups

Steenrod Problem and realization of rational homology classes by manifolds

Topological Spin manifolds in dimension 4

Example of a finite group $G$ with low dimensional cohomology not generated by Stiefel-Whitney classes of flat vector bundles over $BG$

Status of Zeeman's collapsability Conjecture

Atiyah Bott-Shapiro orientation Vs Anderson-Brown-Peterson Splitting

Morse Theory and proper actions

Reference request: mod 2 cohomology of periodic KO theory

Five-dimensional manifolds fibering over a fixed hyperbolic surface

Example of nonvanishing Waldhausen Nil group

Differential of homological atiyah-Hirzebruch Spectral sequence for K-homology

Amenability as a geometric property

Higher homotopy groups and ramified covering maps [duplicate]

homological 2 dimensional groups

Enumeration of three dimensional spherical good orbifolds covered by Nil, sol and E3

Spin bordism with non free involution

Ends of Coxeter Groups

Bordism and complex $K$-theory

Reference request :Conjugation action in the mod 2 cohomology of Integral Eilenberg Maclane spectrum

Extensive survey of computations of equivariant stable stems

Reference Request: Equivariant Symplectic bordism

Reference for de Rham cohomology for physicists

Character Theory for quaternionic representations of finite groups

Reduced Vs unreduced cohomology in the parametrized setting.

f vectors of simplicial complexes homeomorphic to n dimensional spheres

Local cross sections for Unitary group in a hilbert space

Cohomological dimension of closed $G$-invariant subspaces on homology manifolds with a group action

Model for random graphs where clique number remains bounded