Integral distance graphs
摘要:
Suppose D is a subset of all positive integers. The distance graph G ( Z , D ) with distance set D is the graph with vertex set Z , and two vertices x and y are adjacent if and only if | x y | ≡ D . This paper studies the chromatic number χ( Z , D ) of G ( Z , D ). In particular, we prove that χ( Z , D ) ≤ | D | + 1 when | D | is finite. Exact values of χ( G , D ) are also determined for some D with | D | = 3. 1997 John Wiley & Sons, Inc. J Graph Theory 25: 287–294, 1997
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DOI:
10.1002/(SICI)1097-0118(199708)25:43.0.CO;2-G
被引量:
年份:
1997







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