Tagged Questions
1
vote
0answers
35 views
A $k$-form is thought of as measuring the flux through an infinitesimal k-parallelepiped
On the wikipedia has written "A $k$-form is thought of as measuring the flux through an infinitesimal k-parallelepiped." How does a $k$-form do this? if this sentence is right, then the flux of which ...
4
votes
1answer
90 views
Relating volume elements and metrics. Does a volume element + uniform structure induce a metric?
AFAIK a metric uniquely determines the volume element up to to sign since the volume element since a metric will determine the length of supplied vectors and angle between them, but I do not see a way ...
5
votes
1answer
85 views
Diffeomorphic riemannian manifolds and volume forms
Maybe the question will be stupid, but I'm a beginner in riemannian geometry...
We have two riemannian manifolds $(M,g)$, $(\overline M,\overline g)$ and a diffeomorphism $F:M\rightarrow\overline M$ ...
0
votes
0answers
76 views
Existence of Spin Group
"In mathematics the spin group Spin(n) 1[2] is the double cover of the special orthogonal group SO(n), such that there exists a short exact sequence of Lie groups
As a Lie group Spin(n) therefore ...
2
votes
0answers
201 views
Differential forms and a chain rule
Let $U$ be a Riemann surface and let $z:U\longrightarrow B(0,1)$ be a diffeomorphism, where $B(0,1)$ is the open unit disc in $\mathbf{C}$. So $z$ is a coordinate around $P=z^{-1}(0)$.
Let $Q\in U$ ...
