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Abstract:
In 2002, Bollobas and Scott posed the following problem: for an integer k >= 2 and a graph G of m edges, what is the smallest f(k, m) such that V(G) can be partitioned into V-1,..., V-k in which e(V-i boolean OR V-j) <= f (k, m) for all 1 <= i not equal j <= k, where e(V-i boolean OR V-j) denotes the number of edges with both ends in V-i boolean OR V-j? In this paper, we solve this problem asymptotically by showing that f (k, m) <= m/(k - 1) + o(m). We also show that V(G) can be partitioned into V-1,..., V-k such that e(V-i boolean OR V-j) <= 4m/k(2) + 4 Delta/k + o(m) for 1 <= i not equal j <= k, where Delta denotes the maximum degree of G. This confirms a conjecture of Bollobas and Scott. (C) 2016 Wiley Periodicals, Inc.
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RANDOM STRUCTURES & ALGORITHMS
ISSN: 1042-9832
Year: 2017
Issue: 1
Volume: 50
Page: 59-70
0 . 9 8 5
JCR@2017
0 . 9 0 0
JCR@2023
ESI Discipline: MATHEMATICS;
ESI HC Threshold:71
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 17
SCOPUS Cited Count: 18
ESI Highly Cited Papers on the List: 3 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: