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討論串[代數] 幾題代數
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1.Compute the indicated quantities for the given homomorphism ∮. Ker(∮)and∮(20) for ∮:Z→Z10 such that ∮(1)=6. 2.Let G be any group and let "a" be any
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1.find a finite ring with characteristic 4.. 2.find a infinite ring with characteristic 4.. 3.. f:R→S is a homo of rings with identity. and u is a uni
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1.. Let R be a ring with more than one element such that for each nonzero element. a in R, there is a unique b in R such that aba=a.. Show that "R has
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