A proof by graphs that PSL(2, 7) PSL(3, 2) |
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Authors: | R. H. Jeurissen |
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Abstract: | We give three definitions of the Coxeter graph. By the second one we see that PSL(2, 7) is contained in the automorphism group of that graph as a subgroup of index 2, and by the third one that the same holds for PSL(3, 2). |
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