{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,2]],"date-time":"2026-01-02T07:51:34Z","timestamp":1767340294198,"version":"3.41.2"},"reference-count":0,"publisher":"The Electronic Journal of Combinatorics","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Electron. J. Combin."],"abstract":"<jats:p>Fulek et al. (2013, 2016, 2017) have presented Hanani-Tutte results for (radial) level-planarity, i.e., a graph is (radial) level-planar if it admits a (radial) level drawing where any two independent edges cross an even number of times. We show that the\u00a0 2-SAT formulation of level-planarity testing due to Randerath et al. (2001) is equivalent to the strong Hanani-Tutte theorem for level-planarity (2013). By elevating this relationship to radial level-planarity, we obtain a novel polynomial-time algorithm for testing radial level-planarity in the spirit of Randerath et al.<\/jats:p>","DOI":"10.37236\/10814","type":"journal-article","created":{"date-parts":[[2022,11,3]],"date-time":"2022-11-03T18:16:51Z","timestamp":1667499411000},"source":"Crossref","is-referenced-by-count":1,"title":["Level-Planarity: Transitivity vs. Even Crossings"],"prefix":"10.37236","volume":"29","author":[{"given":"Guido","family":"Br\u00fcckner","sequence":"first","affiliation":[]},{"given":"Ignaz","family":"Rutter","sequence":"additional","affiliation":[]},{"given":"Peter","family":"Stumpf","sequence":"additional","affiliation":[]}],"member":"23455","published-online":{"date-parts":[[2022,11,4]]},"container-title":["The Electronic Journal of Combinatorics"],"original-title":[],"link":[{"URL":"https:\/\/www.combinatorics.org\/ojs\/index.php\/eljc\/article\/download\/v29i4p22\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.combinatorics.org\/ojs\/index.php\/eljc\/article\/download\/v29i4p22\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,11,3]],"date-time":"2022-11-03T18:16:52Z","timestamp":1667499412000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.combinatorics.org\/ojs\/index.php\/eljc\/article\/view\/v29i4p22"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,11,4]]},"references-count":0,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2022,10,6]]}},"URL":"https:\/\/doi.org\/10.37236\/10814","relation":{},"ISSN":["1077-8926"],"issn-type":[{"type":"electronic","value":"1077-8926"}],"subject":[],"published":{"date-parts":[[2022,11,4]]},"article-number":"P4.22"}}