{ "id": "1701.08355", "version": "v1", "published": "2017-01-29T08:35:52.000Z", "updated": "2017-01-29T08:35:52.000Z", "title": "Equal relation between the extra connectivity and pessimistic diagnosability for some regular graphs", "authors": [ "Mei-Mei Gu", "Rong-Xia Hao", "Jun-Ming Xu", "Yan-Quan Feng" ], "comment": "23 pages", "categories": [ "math.CO" ], "abstract": "Extra connectivity and the pessimistic diagnosis are two crucial subjects for a multiprocessor system's ability to tolerate and diagnose faulty processor. The pessimistic diagnosis strategy is a classic strategy based on the PMC model in which isolates all faulty vertices within a set containing at most one fault-free vertex. In this paper, the result that the pessimistic diagnosability $t_p(G)$ equals the extra connectivity $\\kappa_{1}(G)$ of a regular graph $G$ under some conditions are shown. Furthermore, the following new results are gotten: the pessimistic diagnosability $t_p(S_n^2)=4n-9$ for split-star networks $S_n^2$, $t_p(\\Gamma_n)=2n-4$ for Cayley graphs generated by transposition trees $\\Gamma_n$, $t_p(\\Gamma_{n}(\\Delta))=4n-11$ for Cayley graph generated by the $2$-tree $\\Gamma_{n}(\\Delta)$, $t_{p}(BP_n)=2n-2$ for the burnt pancake networks $BP_n$. As corollaries, the known results about the extra connectivity and the pessimistic diagnosability of many famous networks including the alternating group graphs, the alternating group networks, BC networks, the $k$-ary $n$-cube networks etc. are obtained directly.", "revisions": [ { "version": "v1", "updated": "2017-01-29T08:35:52.000Z" } ], "analyses": { "subjects": [ "68R10", "G.2.2" ], "keywords": [ "extra connectivity", "pessimistic diagnosability", "regular graph", "equal relation", "cayley graph" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable" } } }