期刊
THEORETICAL COMPUTER SCIENCE
卷 895, 期 -, 页码 68-74出版社
ELSEVIER
DOI: 10.1016/j.tcs.2021.09.030
关键词
Interconnection networks; Extra connectivity; Component connectivity; h-extra r-component connectivity; Hypercube
资金
- National Natural Science Foundation of China [11871055]
The paper introduces a novel generalized connectivity that combines h-extra connectivity and r-component connectivity. The h-extra r-component connectivity of n-dimensional hypercube Q(n) is also determined for r is an element of {2,3, 4}.
The connectivity and its generalizations have been well studied due to their impact on the fault tolerance and diagnosability of the interconnection networks. In this paper, we introduce a novel generalized connectivity, which combines the h-extra connectivity and r-component connectivity. Given a connected graph G = (V, E), for any h >= 0 and r >= 2, an h-extra r-component cut of G is a subset S subset of V such that there are at least r components in G \ S and each component has at least h +1 vertices; h-extra r-component connectivity of G, denoted as C kappa(h)(r)(G), is the minimum size of any h-extra r-component cut of G. We determine the h-extra r-component connectivity of n-dimensional hypercube Q(n), C kappa(1)(r) (Q(n)) = 2(r - 1)(n - r +1) for r is an element of {2,3, 4}. (C) 2021 Elsevier B.V. All rights reserved.
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