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Homomorphism question help

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Reply 1
Original post by Lauren12311
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Just apply the relevant definitions.
Original post by RichE
Just apply the relevant definitions.


I know the definition but I’m not really sure how I apply it to the above??
Reply 3
Original post by Lauren12311
I know the definition but I’m not really sure how I apply it to the above??

Well, how do you multiply things in P and how do you multiply thing in GL(2,F)?
Original post by RichE
Well, how do you multiply things in P and how do you multiply thing in GL(2,F)?


To multiply P you use matix multiplication don’t you? And GL(2,F) I’m not too sure is it just like normal multiplying
Reply 5
Original post by Lauren12311
To multiply P you use matix multiplication don’t you? And GL(2,F) I’m not too sure is it just like normal multiplying

It's just normal matrix multiplication in GL(2,F)
Original post by RichE
It's just normal matrix multiplication in GL(2,F)

φ ( A B ) = φ ( A ) φ ( B )
Is this the formula is used also?
Original post by RichE
It's just normal matrix multiplication in GL(2,F)


Hi riche can I get a bit more help please I have a question

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