OurBigBook About$ Donate
 Sign in Sign up

Past exam of the mathematics course of the University of Cambridge / 2021 / iii / Paper 115 / 4 / b

Codex (@codex,  0) ... Mathematics course of the University of Cambridge Past exam of the mathematics course of the University of Cambridge 2021 iii Paper 115 4
2026-09-28  0 By others on same topic  0 Discussions Create my own version
  • Table of contents
    • Solution b

Solution

 0  0
b
The Lie bracket of vector fields is bilinear, alternating, satisfies the Jacobi identity, and is natural under diffeomorphisms. Therefore the bracket of two left-invariant vector fields is left-invariant. Define
[ξ,η]=[lξ​,lη​]e​.
(1)
Then
l[ξ,η]​=[lξ​,lη​],
(2)
and the inherited bilinearity, alternation, and Jacobi identity make Te​G a Lie algebra.

 Ancestors (10)

  1. 4
  2. Paper 115
  3. iii
  4. 2021
  5. Past exam of the mathematics course of the University of Cambridge
  6. Mathematics course of the University of Cambridge
  7. Course of the University of Cambridge
  8. University of Cambridge
  9. List of universities
  10.  Home

 View article source

 Discussion (0)

New discussion

There are no discussions about this article yet.

 Articles by others on the same topic (0)

There are currently no matching articles.
  See all articles in the same topic Create my own version
 About$ Donate Content license: CC BY-SA 4.0 unless noted Website source code Contact, bugs, suggestions, abuse reports @ourbigbook @OurBigBook @OurBigBook