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For 0, we show that 0 belongs to the spectrum of [Formula: see text] or to the spectrum of [Formula: see text]. <\/jats:p>","DOI":"10.1142\/s1793830922501300","type":"journal-article","created":{"date-parts":[[2022,8,12]],"date-time":"2022-08-12T01:41:38Z","timestamp":1660268498000},"source":"Crossref","is-referenced-by-count":0,"title":["Weighted spectra on a weighted geometric realization of 2-simplexes and 3-simplexes"],"prefix":"10.1142","volume":"15","author":[{"given":"Azeddine","family":"Baalal","sequence":"first","affiliation":[{"name":"Fundamental and Applied Mathematics Laboratory, Department of Mathematics and Computer Science, Faculty of Sciences A\u00efn Chock, Hassan II University of Casablanca, Morocco"}]},{"given":"Khalid","family":"Hatim","sequence":"additional","affiliation":[{"name":"Fundamental and Applied Mathematics Laboratory, Department of Mathematics and Computer Science, Faculty of Sciences A\u00efn Chock, Hassan II University of Casablanca, Morocco"}]}],"member":"219","published-online":{"date-parts":[[2022,8,27]]},"reference":[{"issue":"2","key":"S1793830922501300BIB002","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1007\/s13324-014-0090-0","volume":"5","author":"Ann\u00e9 C.","year":"2015","journal-title":"Anal. 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