58

Answers

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1

Vector fields on $(4n+1)$-spheres

1

A basic question related to Hamiltonian isotopy in symplectic geometry

2

Finite dimensional “Mountain Pass Lemma”

0

Sum of two tangent bundles of $S^{2n}$

3

Computing the cardinality of cohomology groups

11

How many proofs that $\pi_n(S^n)=\mathbb{Z}$ are there?

2

Motivation of Virasoro algebra

1

A novice question on Quantum Mechanics

1

Cohomology ring of BG

1

Generalized geometry and spin structures

7

Mathematician trying to learn string theory

1

Concerning strata in $C^\infty(M)$

4

Computation of homotopy groups of spheres via Pontryagin-Thom

1

Pathological Examples of Dimension

2

Applications of Hodge-de Rham Laplacian on p-forms ($p\neq 0,n$) in physics or engineering

0

Number of spin structures

1

$J$-holomorphic curve as a minimal surface

3

Explicit computation of Gromov-WItten invariants

1

Proving finite generation by tensoring with $\mathbb{R}$

3

Is there a mathematical explanation for the Aharonov-Casher effect?

5

The Chern-Simons/Wess-Zumino-Witten correspondence

3

Interpretation of universal coefficients theorem for group cohomology

4

Mathematics of quasicrystals

11

Why does bosonic string theory require 26 spacetime dimensions?

1

Symplectic structures from Lagrangians?

6

Introduction to Floer Theory?

1

Conditions for the restriction $H^i(G,A)\to H^i(H,A)$ being surjective

0

$\pi_0${plane fields}$\to\mathbb{Z}_2$

0

Morse Function on 3-Torus from Heegaard Splitting

4

Construction of Serre Spectral Sequence