Cayley Table of Elementary Abelian Group $E_8$












3












$begingroup$


I read about elementary abelian group $E_8$ at https://groupprops.subwiki.org/wiki/Elementary_abelian_group:E8#Definition. I've performed some searches on other sites and have yet to come across a Cayley table for it. Any leads on where to find one?










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$endgroup$








  • 2




    $begingroup$
    Why do you need such a huge ($8times 8$) table? As long as you know the definition, you can create the Cayley table if you want.
    $endgroup$
    – Eclipse Sun
    Dec 10 '18 at 21:00












  • $begingroup$
    @EclipseSun Yes, knowledge of the definition should be sufficient to generate the table. I suppose I lack supreme confidence in my execution and would like to verify.
    $endgroup$
    – bblohowiak
    Dec 11 '18 at 15:30






  • 2




    $begingroup$
    I wouldn't call it E8. The usual notation is $2^3$. E8 tends to refer to a root system.
    $endgroup$
    – C Monsour
    Dec 12 '18 at 17:41
















3












$begingroup$


I read about elementary abelian group $E_8$ at https://groupprops.subwiki.org/wiki/Elementary_abelian_group:E8#Definition. I've performed some searches on other sites and have yet to come across a Cayley table for it. Any leads on where to find one?










share|cite|improve this question











$endgroup$








  • 2




    $begingroup$
    Why do you need such a huge ($8times 8$) table? As long as you know the definition, you can create the Cayley table if you want.
    $endgroup$
    – Eclipse Sun
    Dec 10 '18 at 21:00












  • $begingroup$
    @EclipseSun Yes, knowledge of the definition should be sufficient to generate the table. I suppose I lack supreme confidence in my execution and would like to verify.
    $endgroup$
    – bblohowiak
    Dec 11 '18 at 15:30






  • 2




    $begingroup$
    I wouldn't call it E8. The usual notation is $2^3$. E8 tends to refer to a root system.
    $endgroup$
    – C Monsour
    Dec 12 '18 at 17:41














3












3








3





$begingroup$


I read about elementary abelian group $E_8$ at https://groupprops.subwiki.org/wiki/Elementary_abelian_group:E8#Definition. I've performed some searches on other sites and have yet to come across a Cayley table for it. Any leads on where to find one?










share|cite|improve this question











$endgroup$




I read about elementary abelian group $E_8$ at https://groupprops.subwiki.org/wiki/Elementary_abelian_group:E8#Definition. I've performed some searches on other sites and have yet to come across a Cayley table for it. Any leads on where to find one?







abstract-algebra group-theory finite-groups abelian-groups cayley-table






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share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Dec 29 '18 at 3:12









the_fox

2,89021537




2,89021537










asked Dec 10 '18 at 20:56









bblohowiakbblohowiak

1099




1099








  • 2




    $begingroup$
    Why do you need such a huge ($8times 8$) table? As long as you know the definition, you can create the Cayley table if you want.
    $endgroup$
    – Eclipse Sun
    Dec 10 '18 at 21:00












  • $begingroup$
    @EclipseSun Yes, knowledge of the definition should be sufficient to generate the table. I suppose I lack supreme confidence in my execution and would like to verify.
    $endgroup$
    – bblohowiak
    Dec 11 '18 at 15:30






  • 2




    $begingroup$
    I wouldn't call it E8. The usual notation is $2^3$. E8 tends to refer to a root system.
    $endgroup$
    – C Monsour
    Dec 12 '18 at 17:41














  • 2




    $begingroup$
    Why do you need such a huge ($8times 8$) table? As long as you know the definition, you can create the Cayley table if you want.
    $endgroup$
    – Eclipse Sun
    Dec 10 '18 at 21:00












  • $begingroup$
    @EclipseSun Yes, knowledge of the definition should be sufficient to generate the table. I suppose I lack supreme confidence in my execution and would like to verify.
    $endgroup$
    – bblohowiak
    Dec 11 '18 at 15:30






  • 2




    $begingroup$
    I wouldn't call it E8. The usual notation is $2^3$. E8 tends to refer to a root system.
    $endgroup$
    – C Monsour
    Dec 12 '18 at 17:41








2




2




$begingroup$
Why do you need such a huge ($8times 8$) table? As long as you know the definition, you can create the Cayley table if you want.
$endgroup$
– Eclipse Sun
Dec 10 '18 at 21:00






$begingroup$
Why do you need such a huge ($8times 8$) table? As long as you know the definition, you can create the Cayley table if you want.
$endgroup$
– Eclipse Sun
Dec 10 '18 at 21:00














$begingroup$
@EclipseSun Yes, knowledge of the definition should be sufficient to generate the table. I suppose I lack supreme confidence in my execution and would like to verify.
$endgroup$
– bblohowiak
Dec 11 '18 at 15:30




$begingroup$
@EclipseSun Yes, knowledge of the definition should be sufficient to generate the table. I suppose I lack supreme confidence in my execution and would like to verify.
$endgroup$
– bblohowiak
Dec 11 '18 at 15:30




2




2




$begingroup$
I wouldn't call it E8. The usual notation is $2^3$. E8 tends to refer to a root system.
$endgroup$
– C Monsour
Dec 12 '18 at 17:41




$begingroup$
I wouldn't call it E8. The usual notation is $2^3$. E8 tends to refer to a root system.
$endgroup$
– C Monsour
Dec 12 '18 at 17:41










1 Answer
1






active

oldest

votes


















4












$begingroup$

That's easy.



gap> G:=ElementaryAbelianGroup(8);;
gap> n:=8;;
gap> M:=MultiplicationTable(G);;
gap> for i in [1..n] do
> for j in [1..n] do
> Print(M[i][j]," ");
> od;
> Print("n");
> od;
1 2 3 4 5 6 7 8
2 1 5 6 3 4 8 7
3 5 1 7 2 8 4 6
4 6 7 1 8 2 3 5
5 3 2 8 1 7 6 4
6 4 8 2 7 1 5 3
7 8 4 3 6 5 1 2
8 7 6 5 4 3 2 1





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    1 Answer
    1






    active

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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

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    active

    oldest

    votes









    4












    $begingroup$

    That's easy.



    gap> G:=ElementaryAbelianGroup(8);;
    gap> n:=8;;
    gap> M:=MultiplicationTable(G);;
    gap> for i in [1..n] do
    > for j in [1..n] do
    > Print(M[i][j]," ");
    > od;
    > Print("n");
    > od;
    1 2 3 4 5 6 7 8
    2 1 5 6 3 4 8 7
    3 5 1 7 2 8 4 6
    4 6 7 1 8 2 3 5
    5 3 2 8 1 7 6 4
    6 4 8 2 7 1 5 3
    7 8 4 3 6 5 1 2
    8 7 6 5 4 3 2 1





    share|cite|improve this answer









    $endgroup$


















      4












      $begingroup$

      That's easy.



      gap> G:=ElementaryAbelianGroup(8);;
      gap> n:=8;;
      gap> M:=MultiplicationTable(G);;
      gap> for i in [1..n] do
      > for j in [1..n] do
      > Print(M[i][j]," ");
      > od;
      > Print("n");
      > od;
      1 2 3 4 5 6 7 8
      2 1 5 6 3 4 8 7
      3 5 1 7 2 8 4 6
      4 6 7 1 8 2 3 5
      5 3 2 8 1 7 6 4
      6 4 8 2 7 1 5 3
      7 8 4 3 6 5 1 2
      8 7 6 5 4 3 2 1





      share|cite|improve this answer









      $endgroup$
















        4












        4








        4





        $begingroup$

        That's easy.



        gap> G:=ElementaryAbelianGroup(8);;
        gap> n:=8;;
        gap> M:=MultiplicationTable(G);;
        gap> for i in [1..n] do
        > for j in [1..n] do
        > Print(M[i][j]," ");
        > od;
        > Print("n");
        > od;
        1 2 3 4 5 6 7 8
        2 1 5 6 3 4 8 7
        3 5 1 7 2 8 4 6
        4 6 7 1 8 2 3 5
        5 3 2 8 1 7 6 4
        6 4 8 2 7 1 5 3
        7 8 4 3 6 5 1 2
        8 7 6 5 4 3 2 1





        share|cite|improve this answer









        $endgroup$



        That's easy.



        gap> G:=ElementaryAbelianGroup(8);;
        gap> n:=8;;
        gap> M:=MultiplicationTable(G);;
        gap> for i in [1..n] do
        > for j in [1..n] do
        > Print(M[i][j]," ");
        > od;
        > Print("n");
        > od;
        1 2 3 4 5 6 7 8
        2 1 5 6 3 4 8 7
        3 5 1 7 2 8 4 6
        4 6 7 1 8 2 3 5
        5 3 2 8 1 7 6 4
        6 4 8 2 7 1 5 3
        7 8 4 3 6 5 1 2
        8 7 6 5 4 3 2 1






        share|cite|improve this answer












        share|cite|improve this answer



        share|cite|improve this answer










        answered Dec 10 '18 at 21:38









        the_foxthe_fox

        2,89021537




        2,89021537






























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