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Results tagged with principal-bundles
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user 259525
A principal $G$-bundle, where $G$ denotes any topological group, is a fiber bundle $\pi :P → X$ together with a continuous right action $P × G → P$ such that $G$ preserves the fibers of $P$ and acts freely and transitively on them.
2
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130
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Definition of trace in topological BF-theories
I very important example of topological field theories are "BF-theories", which are usually defined as follows: Let $G$ be a Lie group with Lie algebra $\mathfrak{g}$ and let $\pi:P\to\mathcal{M}$ be …
- 1,429
5
votes
1
answer
352
views
Spin connection in the tetradic Palatini-formalism of general relativity
$\DeclareMathOperator\SO{SO}$I am trying to understand the tetradic Palatini-formalism of general relativity from a mathematical point of view. I am graduate student and quite new to mathematical gaug …
- 1,429
2
votes
0
answers
86
views
On the "integrality condition" of the bilinear form in the Chern-Simons action
Let $G$ be a Lie group with Lie algebra $\mathfrak{g}$ and let $\pi:P\to\mathcal{M}$ be a principal $G$-bundle over a smooth orientable manifold $\mathcal{M}$. Furthermore, let $\langle\cdot,\cdot\ran …
- 1,429