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1. Suppose that Ø:Z(50)→Z(50) is an automorphism with Ø(11)=13. Determine a formula for Ø(x).
this is the problem I am getting, its chapter 6 problem 20 in Gallian's Abstract Algebra latest edition (you can find it on googlebooks) Am i wrong in thinking there's something wrong with the problem?
I think this because arent both 11 and 13 generators of U(50) because of coprimeness, am i missing something big? or is the book just giving me a bum problem?
edit: i have a final exam tommorow and the teacher stressed this chapters homework, please help!
this is the problem I am getting, its chapter 6 problem 20 in Gallian's Abstract Algebra latest edition (you can find it on googlebooks) Am i wrong in thinking there's something wrong with the problem?
I think this because arent both 11 and 13 generators of U(50) because of coprimeness, am i missing something big? or is the book just giving me a bum problem?
edit: i have a final exam tommorow and the teacher stressed this chapters homework, please help!