{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T03:57:01Z","timestamp":1768881421330,"version":"3.49.0"},"reference-count":0,"publisher":"The Electronic Journal of Combinatorics","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Electron. J. Combin."],"abstract":"<jats:p>A special case of a combinatorial theorem of De\u00a0Bruijn and Erd\u0151s asserts that every noncollinear set of $n$\u00a0points in the plane determines at least $n$ distinct lines. Chen and\u00a0Ch\u00e1vtal suggested a possible generalization of this assertion in\u00a0metric spaces with appropriately defined lines. We prove this\u00a0generalization in all metric spaces induced by connected chordal\u00a0graphs.<\/jats:p>","DOI":"10.37236\/3527","type":"journal-article","created":{"date-parts":[[2020,1,11]],"date-time":"2020-01-11T00:30:03Z","timestamp":1578702603000},"source":"Crossref","is-referenced-by-count":13,"title":["A De Bruijn\u2013Erd\u0151s Theorem for Chordal Graphs"],"prefix":"10.37236","volume":"22","author":[{"given":"Laurent","family":"Beaudou","sequence":"first","affiliation":[]},{"given":"Adrian","family":"Bondy","sequence":"additional","affiliation":[]},{"given":"Xiaomin","family":"Chen","sequence":"additional","affiliation":[]},{"given":"Ehsan","family":"Chiniforooshan","sequence":"additional","affiliation":[]},{"given":"Maria","family":"Chudnovsky","sequence":"additional","affiliation":[]},{"given":"Va\u0161ek","family":"Chv\u00e1tal","sequence":"additional","affiliation":[]},{"given":"Nicolas","family":"Fraiman","sequence":"additional","affiliation":[]},{"given":"Yori","family":"Zwols","sequence":"additional","affiliation":[]}],"member":"23455","published-online":{"date-parts":[[2015,3,23]]},"container-title":["The Electronic Journal of Combinatorics"],"original-title":[],"link":[{"URL":"https:\/\/www.combinatorics.org\/ojs\/index.php\/eljc\/article\/download\/v22i1p70\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.combinatorics.org\/ojs\/index.php\/eljc\/article\/download\/v22i1p70\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,1,17]],"date-time":"2020-01-17T10:23:45Z","timestamp":1579256625000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.combinatorics.org\/ojs\/index.php\/eljc\/article\/view\/v22i1p70"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,3,23]]},"references-count":0,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2015,1,2]]}},"URL":"https:\/\/doi.org\/10.37236\/3527","relation":{},"ISSN":["1077-8926"],"issn-type":[{"value":"1077-8926","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,3,23]]},"article-number":"P1.70"}}