Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
G-structure on a manifold
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
==== In terms of classifying spaces ==== Given a map <math>\pi\colon X \to BG</math>, where <math>BG</math> is the [[classifying space]] for <math>G</math>-bundles, a ''reduction of the structure group'' is a map <math>\pi_Q\colon X \to BH</math> and a homotopy <math>\phi_Q\colon B\phi \circ \pi_Q \to \pi</math>.
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)