On types of growth for graph-different permutations
نویسندگان
چکیده
We consider an infinite graph G whose vertex set is the set of natural numbers and adjacency depends solely on the difference between vertices. We study the largest cardinality of a set of permutations of [n] any pair of which differ somewhere in a pair of adjacent vertices of G and determine it completely in an interesting special case. We give estimates for other cases and compare the results in case of complementary graphs. We also explore the close relationship between our problem and the concept of Shannon capacity ”within a given type”. ∗Research partially supported by the Hungarian Foundation for Scientific Research Grant (OTKA) Nos. T046376, AT048826, NK62321, and EU ToK Project FIST 003006.
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عنوان ژورنال:
- J. Comb. Theory, Ser. A
دوره 116 شماره
صفحات -
تاریخ انتشار 2009