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?










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












$begingroup$


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






share|cite|improve this question















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





share|cite|improve this answer









$endgroup$













    Your Answer





    StackExchange.ifUsing("editor", function () {
    return StackExchange.using("mathjaxEditing", function () {
    StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
    StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
    });
    });
    }, "mathjax-editing");

    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "69"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: true,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: 10,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    noCode: true, onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3034455%2fcayley-table-of-elementary-abelian-group-e-8%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    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






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Mathematics Stack Exchange!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            Use MathJax to format equations. MathJax reference.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3034455%2fcayley-table-of-elementary-abelian-group-e-8%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            Bundesstraße 106

            Verónica Boquete

            Ida-Boy-Ed-Garten