- #1
HJ Farnsworth
- 128
- 1
Greetings,
For a homomorphism [itex]\varphi[/itex], I'm trying to show that elements of a fiber, say the fiber above [itex]a[/itex], [itex]X_a[/itex], are writable as a given element of [itex]X_a[/itex] times an element of the kernel [itex]K[/itex]. So, if [itex]a\in X_a[/itex] and [itex]b\in X_a[/itex], then [itex]\exists k\in K[/itex] such that [itex]b=ak[/itex].
I want to do this without using the theorem that [itex]\{[/itex]left cosets of [itex]K[/itex] in [itex]G\} =G/K[/itex] - in fact, one of my motivations for looking for this is that I want a different proof of this theorem then the ones that I have seen.
Does anyone know of a way to do this?
Thanks for any help that you can give.
-HJ Farnsworth
For a homomorphism [itex]\varphi[/itex], I'm trying to show that elements of a fiber, say the fiber above [itex]a[/itex], [itex]X_a[/itex], are writable as a given element of [itex]X_a[/itex] times an element of the kernel [itex]K[/itex]. So, if [itex]a\in X_a[/itex] and [itex]b\in X_a[/itex], then [itex]\exists k\in K[/itex] such that [itex]b=ak[/itex].
I want to do this without using the theorem that [itex]\{[/itex]left cosets of [itex]K[/itex] in [itex]G\} =G/K[/itex] - in fact, one of my motivations for looking for this is that I want a different proof of this theorem then the ones that I have seen.
Does anyone know of a way to do this?
Thanks for any help that you can give.
-HJ Farnsworth