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Lectures on Group Theory

  • Max Dehn

Abstract

We begin our considerations with the generation and geometric representation of the group Σ3! of permutations of three things. We have already shown that this group may be generated by a transposition s1, which exchanges the first and second terms, and a cyclic permutation s2 of all three terms, which replaces the first element by the second, the second by the third, and then the third by the first. When we apply the transposition s1 twice, or the cycle s2 three times, then in each case we come back to the identity, hence
$$ \text{s}_\text{1}^\text{2} = 1\text{ and s}_\text{2}^\text{3} = 1. $$

Keywords

Finite Group Symmetric Group Fundamental Domain Regular Polygon Infinite Group 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag New York Inc. 1987

Authors and Affiliations

  • Max Dehn

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