A g-extra cut of a non-complete graph G, g > 0, is a set of vertices in G whose removal disconnects the graph, while every component in the survival graph contains at least g + 1 vertices. The g-extra connectivity of G then refers to the size of a minimum g-extra cut of G. The augmented hypercube, denoted by A Qn, n > 3, is a rich variant of the hypercube structure. In this paper, we present a sequence of construction based upper bounds of its g-extra connectivity, study its lower bound via the super connectedness property, and suggest an asymptotically tight bound. & COPY; 2023 Elsevier B.V. All rights reserved.
机构:
Henan Normal Univ, Sch Math & Informat Sci, Xinxiang 453007, Henan, Peoples R ChinaHenan Normal Univ, Sch Math & Informat Sci, Xinxiang 453007, Henan, Peoples R China
Wang, Shiying
Zhao, Nan
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机构:
Henan Normal Univ, Sch Math & Informat Sci, Xinxiang 453007, Henan, Peoples R ChinaHenan Normal Univ, Sch Math & Informat Sci, Xinxiang 453007, Henan, Peoples R China