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jessicaw

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1.

I search through the internet and no answer.2.Here is another very difficult conception question which has different answers from my professor and wikipedia:

Difference between Symmetry group,automorphism group and Permutation group?

From wikipedia:automorphism group is, "loosely" speaking, the symmetry group of the object.

My guess is Symmetry group equals Permutation group? and automorphism group is smaller?

**Why [itex] Aut(G)=S_G[/itex] implies G is trivial?**I search through the internet and no answer.2.Here is another very difficult conception question which has different answers from my professor and wikipedia:

Difference between Symmetry group,automorphism group and Permutation group?

From wikipedia:automorphism group is, "loosely" speaking, the symmetry group of the object.

My guess is Symmetry group equals Permutation group? and automorphism group is smaller?

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