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user50655
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Is there any partition of a regular graph which in any part there exists a vertex with all its neighborhood?
Dear Godsil, Would you please send me a paper about perfect 1-code? This is my email address: [email protected]
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Is there any partition of a regular graph which in any part there exists a vertex with all its neighborhood?
I want to partition whole of the graph in this way. I mean, make a partition, in every part put a vertex with all its neighborhood, so in each part there exist exactly r vertices, where my graph is r_regular.
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