Characterization of the Group Associatio
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Masato Tomiyama
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Article
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1999
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Elsevier Science
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English
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The association scheme having the same intersection numbers as those of the group association scheme X(PSL(2, 7)) is shown to be isomorphic to X(PSL(2, 7)), where PSL(2, 7) is the 2-dimensional projective special linear group over the field of order 7.