{"created":"2023-05-15T14:23:38.733847+00:00","id":5750,"links":{},"metadata":{"_buckets":{"deposit":"a4815464-ab83-4514-a5bc-db32fb36dbeb"},"_deposit":{"created_by":3,"id":"5750","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"5750"},"status":"published"},"_oai":{"id":"oai:bunkyo.repo.nii.ac.jp:00005750","sets":["1:26:229"]},"author_link":["7079"],"item_5_biblio_info_13":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2000-01-01"},"bibliographicPageEnd":"29","bibliographicPageStart":"25","bibliographicVolumeNumber":"25","bibliographic_titles":[{"bibliographic_title":"情報研究"},{"bibliographic_title":"Information and Communication Studies"}]}]},"item_5_date_43":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2011-02-23"}]},"item_5_description_12":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"　We shall show that a connected graph G0 is projective-planar if and only if it has a series of double coverings Gn → Gn-1 → … → G0 with Gn planar, called a planar tower, and that a connected graph is projective-planar if and only if it has a projective-planar double covering. This works as an evidence supporting Negami's planar cover conjecture.","subitem_description_type":"Abstract"}]},"item_5_description_33":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"情報学シンポジウム特集号\\nタイトル日本語表記 : グラフの平面的被覆の搭載成法\\n著者名日本語表記 : 根上, 生也","subitem_description_type":"Other"}]},"item_5_description_38":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_5_source_id_19":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03893367"}]},"item_5_text_39":{"attribute_name":"本文言語","attribute_value_mlt":[{"subitem_text_value":"英語"}]},"item_5_text_42":{"attribute_name":"ID","attribute_value_mlt":[{"subitem_text_value":"BKSJ250005"}]},"item_5_text_8":{"attribute_name":"所属機関","attribute_value_mlt":[{"subitem_text_value":"横浜国立大学教育人間科学部"}]},"item_5_text_9":{"attribute_name":"Institution","attribute_value_mlt":[{"subitem_text_value":"Department of Mathematics, Faculty of Education and Human Sciences, Yokohama National University"}]},"item_5_version_type_35":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Negami, Seiya"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-03-24"}],"displaytype":"detail","filename":"BKSJ250005.pdf","filesize":[{"value":"377.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"BKSJ250005.pdf","url":"https://bunkyo.repo.nii.ac.jp/record/5750/files/BKSJ250005.pdf"},"version_id":"08521e88-4c12-494d-99ed-0c4df53273ab"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Tower Construction of Planar Coverings of Graphs","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Tower Construction of Planar Coverings of Graphs"}]},"item_type_id":"5","owner":"3","path":["229"],"pubdate":{"attribute_name":"公開日","attribute_value":"2011-02-23"},"publish_date":"2011-02-23","publish_status":"0","recid":"5750","relation_version_is_last":true,"title":["Tower Construction of Planar Coverings of Graphs"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-05-15T16:17:59.781964+00:00"}