Distance Powers and Distance Matrices of Integral Cayley Graphs over Abelian Groups
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It is shown that distance powers of an integral Cayley graph over an abelian group $\Gamma$ are again integral Cayley graphs over $\Gamma$. Moreover, it is proved that distance matrices of integral Cayley graphs over abelian groups have integral spectrum.
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1998 ◽
Vol 57
(2)
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pp. 181-188
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2004 ◽
Vol Vol. 6 no. 2
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