Z-module isomorphism











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Let n,d be positive integer numbers such that d|n. Show that $<frac{n}{d}>$/$<n>$ Is isomorphic as a module to $mathbb{Z}_{d}$










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  • What have you tried? Perhaps you can define a map sending one group to the other?
    – Aaron
    Nov 28 at 1:18















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Let n,d be positive integer numbers such that d|n. Show that $<frac{n}{d}>$/$<n>$ Is isomorphic as a module to $mathbb{Z}_{d}$










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  • What have you tried? Perhaps you can define a map sending one group to the other?
    – Aaron
    Nov 28 at 1:18













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Let n,d be positive integer numbers such that d|n. Show that $<frac{n}{d}>$/$<n>$ Is isomorphic as a module to $mathbb{Z}_{d}$










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Let n,d be positive integer numbers such that d|n. Show that $<frac{n}{d}>$/$<n>$ Is isomorphic as a module to $mathbb{Z}_{d}$







abstract-algebra modules






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edited Nov 28 at 1:15

























asked Nov 28 at 1:10









Eduardo

32




32












  • What have you tried? Perhaps you can define a map sending one group to the other?
    – Aaron
    Nov 28 at 1:18


















  • What have you tried? Perhaps you can define a map sending one group to the other?
    – Aaron
    Nov 28 at 1:18
















What have you tried? Perhaps you can define a map sending one group to the other?
– Aaron
Nov 28 at 1:18




What have you tried? Perhaps you can define a map sending one group to the other?
– Aaron
Nov 28 at 1:18










1 Answer
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$Bbb Z$-modules are just abelian groups.



You can try to find a homomorphism $<n/d> to mathbb Z_d$ with kernel $<n>$ and apply the First Isomorphism Theorem.






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  • $<n/d> to mathbb Z_d$ $k=x.n/d |to x$ works. Am l right?
    – Eduardo
    Nov 30 at 3:09













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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
0
down vote



accepted










$Bbb Z$-modules are just abelian groups.



You can try to find a homomorphism $<n/d> to mathbb Z_d$ with kernel $<n>$ and apply the First Isomorphism Theorem.






share|cite|improve this answer























  • $<n/d> to mathbb Z_d$ $k=x.n/d |to x$ works. Am l right?
    – Eduardo
    Nov 30 at 3:09

















up vote
0
down vote



accepted










$Bbb Z$-modules are just abelian groups.



You can try to find a homomorphism $<n/d> to mathbb Z_d$ with kernel $<n>$ and apply the First Isomorphism Theorem.






share|cite|improve this answer























  • $<n/d> to mathbb Z_d$ $k=x.n/d |to x$ works. Am l right?
    – Eduardo
    Nov 30 at 3:09















up vote
0
down vote



accepted







up vote
0
down vote



accepted






$Bbb Z$-modules are just abelian groups.



You can try to find a homomorphism $<n/d> to mathbb Z_d$ with kernel $<n>$ and apply the First Isomorphism Theorem.






share|cite|improve this answer














$Bbb Z$-modules are just abelian groups.



You can try to find a homomorphism $<n/d> to mathbb Z_d$ with kernel $<n>$ and apply the First Isomorphism Theorem.







share|cite|improve this answer














share|cite|improve this answer



share|cite|improve this answer








edited Nov 28 at 1:32









Aaron

15.7k22653




15.7k22653










answered Nov 28 at 1:30









Lukas Kofler

1,2552519




1,2552519












  • $<n/d> to mathbb Z_d$ $k=x.n/d |to x$ works. Am l right?
    – Eduardo
    Nov 30 at 3:09




















  • $<n/d> to mathbb Z_d$ $k=x.n/d |to x$ works. Am l right?
    – Eduardo
    Nov 30 at 3:09


















$<n/d> to mathbb Z_d$ $k=x.n/d |to x$ works. Am l right?
– Eduardo
Nov 30 at 3:09






$<n/d> to mathbb Z_d$ $k=x.n/d |to x$ works. Am l right?
– Eduardo
Nov 30 at 3:09




















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