Are elements in $A_n$ the squares of elements in $S_n$? [duplicate]












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  • Characterisation of the squares of the symmetric group

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Tt is true that elements in $A_4$ are squares of elements in $S_4$.
Is it true for $A_n$?










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marked as duplicate by José Carlos Santos, Arnaud D., Pierre-Guy Plamondon, Dietrich Burde abstract-algebra
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Dec 5 '18 at 14:06


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  • $begingroup$
    How about $A_5$?
    $endgroup$
    – Lord Shark the Unknown
    Dec 5 '18 at 13:48
















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$begingroup$



This question already has an answer here:




  • Characterisation of the squares of the symmetric group

    1 answer




Tt is true that elements in $A_4$ are squares of elements in $S_4$.
Is it true for $A_n$?










share|cite|improve this question









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marked as duplicate by José Carlos Santos, Arnaud D., Pierre-Guy Plamondon, Dietrich Burde abstract-algebra
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Dec 5 '18 at 14:06


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.















  • $begingroup$
    How about $A_5$?
    $endgroup$
    – Lord Shark the Unknown
    Dec 5 '18 at 13:48














0












0








0





$begingroup$



This question already has an answer here:




  • Characterisation of the squares of the symmetric group

    1 answer




Tt is true that elements in $A_4$ are squares of elements in $S_4$.
Is it true for $A_n$?










share|cite|improve this question









$endgroup$





This question already has an answer here:




  • Characterisation of the squares of the symmetric group

    1 answer




Tt is true that elements in $A_4$ are squares of elements in $S_4$.
Is it true for $A_n$?





This question already has an answer here:




  • Characterisation of the squares of the symmetric group

    1 answer








abstract-algebra group-theory






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asked Dec 5 '18 at 13:47









user42493user42493

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marked as duplicate by José Carlos Santos, Arnaud D., Pierre-Guy Plamondon, Dietrich Burde abstract-algebra
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Dec 5 '18 at 14:06


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marked as duplicate by José Carlos Santos, Arnaud D., Pierre-Guy Plamondon, Dietrich Burde abstract-algebra
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Dec 5 '18 at 14:06


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.














  • $begingroup$
    How about $A_5$?
    $endgroup$
    – Lord Shark the Unknown
    Dec 5 '18 at 13:48


















  • $begingroup$
    How about $A_5$?
    $endgroup$
    – Lord Shark the Unknown
    Dec 5 '18 at 13:48
















$begingroup$
How about $A_5$?
$endgroup$
– Lord Shark the Unknown
Dec 5 '18 at 13:48




$begingroup$
How about $A_5$?
$endgroup$
– Lord Shark the Unknown
Dec 5 '18 at 13:48










1 Answer
1






active

oldest

votes


















1












$begingroup$

$A_n$ is the set of squares for $nle 5$. See oeis.org/A003483.



In general, $A_n$ is the set of products of squares, that is, the subgroup generated by the squares.






share|cite|improve this answer









$endgroup$













  • $begingroup$
    Adapted from math.stackexchange.com/a/538179/589
    $endgroup$
    – lhf
    Dec 5 '18 at 14:03


















1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1












$begingroup$

$A_n$ is the set of squares for $nle 5$. See oeis.org/A003483.



In general, $A_n$ is the set of products of squares, that is, the subgroup generated by the squares.






share|cite|improve this answer









$endgroup$













  • $begingroup$
    Adapted from math.stackexchange.com/a/538179/589
    $endgroup$
    – lhf
    Dec 5 '18 at 14:03
















1












$begingroup$

$A_n$ is the set of squares for $nle 5$. See oeis.org/A003483.



In general, $A_n$ is the set of products of squares, that is, the subgroup generated by the squares.






share|cite|improve this answer









$endgroup$













  • $begingroup$
    Adapted from math.stackexchange.com/a/538179/589
    $endgroup$
    – lhf
    Dec 5 '18 at 14:03














1












1








1





$begingroup$

$A_n$ is the set of squares for $nle 5$. See oeis.org/A003483.



In general, $A_n$ is the set of products of squares, that is, the subgroup generated by the squares.






share|cite|improve this answer









$endgroup$



$A_n$ is the set of squares for $nle 5$. See oeis.org/A003483.



In general, $A_n$ is the set of products of squares, that is, the subgroup generated by the squares.







share|cite|improve this answer












share|cite|improve this answer



share|cite|improve this answer










answered Dec 5 '18 at 14:02









lhflhf

164k10170395




164k10170395












  • $begingroup$
    Adapted from math.stackexchange.com/a/538179/589
    $endgroup$
    – lhf
    Dec 5 '18 at 14:03


















  • $begingroup$
    Adapted from math.stackexchange.com/a/538179/589
    $endgroup$
    – lhf
    Dec 5 '18 at 14:03
















$begingroup$
Adapted from math.stackexchange.com/a/538179/589
$endgroup$
– lhf
Dec 5 '18 at 14:03




$begingroup$
Adapted from math.stackexchange.com/a/538179/589
$endgroup$
– lhf
Dec 5 '18 at 14:03



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