Cycles in cube-connected cycles graphs

  • Authors:
  • Lih-Hsing Hsu;Tung-Yang Ho;Yen-Hsun Ho;Chey-Woei Tsay

  • Affiliations:
  • -;-;-;-

  • Venue:
  • Discrete Applied Mathematics
  • Year:
  • 2014

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Abstract

Let n be a positive integer with n=3. The cube-connected cycles graph CCC"n has nx2^n vertices, labeled (l,x), where 0@?l@?n-1 and x is an n-bit binary string. Two vertices (l,x) and (l^',y) are adjacent if and only if either x=y and |l-l^'|=1, or l=l^' and y=(x)^l. Let L(n) denote the set of all possible lengths of cycles in CCC"n. In this paper, we prove that L(n)={n}@?{i|i is even, 8@?i@?n+5, and i10}@?{i|n+6@?i@?n2^n} if n is odd; L(4)={4}@?{i|i is even and 8@?i@?64}; and L(n)={n}@?{i|i is even, 8@?i@?n2^n, and i10} if n is even and n=6.