{"created":"2021-03-01T06:59:42.203029+00:00","id":40124,"links":{},"metadata":{"_buckets":{"deposit":"fd63020f-a7e3-4f2d-852f-e1c6c732797e"},"_deposit":{"id":"40124","owners":[],"pid":{"revision_id":0,"type":"depid","value":"40124"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00040124","sets":["312:6865:6959:6965","9:504:6868:6961:6966"]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-03-21","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"42","bibliographicPageStart":"13","bibliographicVolumeNumber":"13","bibliographic_titles":[{"bibliographic_title":"Journal of mathematical sciences, the University of Tokyo"}]}]},"item_4_description_13":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A complete classification is presented of elliptic and K3 fibrations birational to certain mildly singular complex Fano 3-folds.  Detailed proofs are given for one example case, namely that of a general hypersurface $X$ of degree 30 in weighted $\\PP^4$ with weights 1,4,5,6,15; but our methods apply more generally.  For constructing birational maps from $X$ to elliptic and K3 fibrations we use Kawamata blowups and Mori theory to compute anticanonical rings; to exclude other possible fibrations we make a close examination of the strictly canonical singularities of $\\XnH$, where $\\HH$ is the linear system associated to the putative birational map and $n$ is its anticanonical degree.","subitem_description_type":"Abstract"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Graduate School of Mathematical Sciences, The University of Tokyo"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11021653","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13405705","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"415","subitem_subject_scheme":"NDC"}]},"item_4_text_17":{"attribute_name":"Mathmatical Subject Classification","attribute_value_mlt":[{"subitem_text_value":"14E05(MSC1991)"},{"subitem_text_value":"14J30(MSC1991)"},{"subitem_text_value":"14E30(MSC1991)"}]},"item_4_text_33":{"attribute_name":"原稿受領日","attribute_value_mlt":[{"subitem_text_value":"2005-10-14"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Daniel, Ryder"}],"nameIdentifiers":[{"nameIdentifier":"138705","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-27"}],"displaytype":"detail","filename":"jms130102.pdf","filesize":[{"value":"245.3 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"jms130102.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/40124/files/jms130102.pdf"},"version_id":"d4e87644-99a4-4ec2-bede-db63756d5f5e"}]},"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":"Classfication of elliptic and K3 fibrations birational to some Q-Fano 3 folds","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Classfication of elliptic and K3 fibrations birational to some Q-Fano 3 folds"}]},"item_type_id":"4","owner":"1","path":["6965","6966"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-03-04"},"publish_date":"2008-03-04","publish_status":"0","recid":"40124","relation_version_is_last":true,"title":["Classfication of elliptic and K3 fibrations birational to some Q-Fano 3 folds"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:15:11.794070+00:00"}