Title of article :
On types of growth for graph-different permutations
Author/Authors :
Kِrner، نويسنده , , Jلnos and Simonyi، نويسنده , , Gلbor and Sinaimeri، نويسنده , , Blerina Xhabli، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Abstract :
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.”
Keywords :
extremal combinatorics , Permutations , Shannon capacity of graphs
Journal title :
Journal of Combinatorial Theory Series A
Journal title :
Journal of Combinatorial Theory Series A