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Isomorphic Groups

  1. Apr 7, 2009 #1
    Hey trying to understand group theory a bit more. Need some help understanding how to spot which groups are isomorphic to what.

    First of all, but silly, but confirmation on what the groups D is dihedral right? What sort of other groups with i have to deal with. Like Z for integers? and U for non-zero integers?

    I know it has something to do with cyclic and abelian but i am still unsure.

    One of the questions i have is given 4 grroups.

    Z100, Z2 x Z50, D50, Z4 x Z25

    which of the groups are isomorphic.

    Any help is much appreciated.

    Thanks
     
  2. jcsd
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