{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T02:46:08Z","timestamp":1771296368000,"version":"3.50.1"},"reference-count":28,"publisher":"World Scientific Pub Co Pte Ltd","issue":"04","funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11801521"],"award-info":[{"award-number":["11801521"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Discrete Math. Algorithm. Appl."],"published-print":{"date-parts":[[2023,5]]},"abstract":"<jats:p> The Seidel spectrum of a graph is defined as the multiset of all eigenvalues of its Seidel matrix. For two simple connected graphs [Formula: see text] and [Formula: see text], let us denote the subdivision-vertex join and subdivision-edge join by [Formula: see text] and [Formula: see text], respectively. In this paper, we completely determine the Seidel spectrum and corresponding Seidel eigenvectors of [Formula: see text] and [Formula: see text]. As an application, we give a sufficient and necessary condition for [Formula: see text] and [Formula: see text] to be Seidel integral. <\/jats:p>","DOI":"10.1142\/s1793830922501063","type":"journal-article","created":{"date-parts":[[2022,4,28]],"date-time":"2022-04-28T09:43:54Z","timestamp":1651139034000},"source":"Crossref","is-referenced-by-count":1,"title":["The Seidel spectrum of two variants of join operations"],"prefix":"10.1142","volume":"15","author":[{"given":"Mei-Jiao","family":"Cheng","sequence":"first","affiliation":[{"name":"Department of Mathematics, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. 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