Author/Authors :
Chang، نويسنده , , G.J. and Huang، نويسنده , , L. and Zhu، نويسنده , , X.، نويسنده ,
Abstract :
This paper studies circular chromatic numbers and fractional chromatic numbers of distance graphsG(Z,D) for various distance setsD. In particular, we determine these numbers for thoseDsets of size two, for some specialDsets of size three, forD = {1, 2,···,m,n} with 1 ≤ m < n, forD = {q,q + 1,···,p} withq < p, and forD = {1, 2, ···,m} − {k} with 1 < k < m.
