{"created":"2023-06-20T15:17:17.192398+00:00","id":11122,"links":{},"metadata":{"_buckets":{"deposit":"efaafadf-2555-4dda-8f7f-6586e79517df"},"_deposit":{"created_by":21,"id":"11122","owners":[21],"pid":{"revision_id":0,"type":"depid","value":"11122"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00011122","sets":["6:7"]},"author_link":["67087","127092","127006","127005"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-03-18","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":" \tSpecial Issue 1","bibliographicPageStart":"2403014","bibliographicVolumeNumber":"17","bibliographic_titles":[{"bibliographic_title":"Plasma and Fusion Research "}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A novel method is proposed for solving an EFG-type Saddle-Point (EFG-SP) problem. Although the null-space method and the variable-reduction method (VRM) were developed as a solver of a saddle-point problem, both methods are extremely time-consuming in solving an EFG-SP problem. This is attributable to the QR decomposition that is indispensable for both methods. For the purpose of resolving this problem, the improved Variable-Reduction Method (iVRM) is formulated without using the QR decomposition. A numerical code has been developed for solving an EFG-SP problem with the iVRM, the VRM and the ICCG method. By means of the code, the performance of the three methods is investigated numerically. The results of computations show that, from the standpoint of convergence property and computational speed, the iVRM is even superior to either of the VRM and the ICCG method.","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"The Japan Society of Plasma Science and Nuclear Fusion Research "}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1585/pfr.17.2403014","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Publisher version"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.jspf.or.jp/PFR/PFR_articles/pfr2022/pfr2022_17-2403014.html","subitem_relation_type_select":"URI"}}]},"item_10001_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"(c) 2022 The Japan Society of Plasma Science and Nuclear Fusion Research "}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12346675 ","subitem_source_identifier_type":"NCID"}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18806821 ","subitem_source_identifier_type":"ISSN"}]},"item_10001_text_23":{"attribute_name":"NAIS","attribute_value_mlt":[{"subitem_text_value":"13357"}]},"item_10001_text_25":{"attribute_name":"書誌的事項","attribute_value_mlt":[{"subitem_text_value":"This article is based on the presentation at the 30th International Toki Conference on Plasma and Fusion Research (ITC30)"}]},"item_10001_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"KAMITANI, Atsushi"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"TAKAYAMA, Teruou"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SAITOH, Ayumu"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"NAKAMURA,  Hiroaki"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-03-23"}],"displaytype":"detail","filename":"pfr2022_17-2403014.pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"pfr2022_17-2403014","url":"https://nifs-repository.repo.nii.ac.jp/record/11122/files/pfr2022_17-2403014.pdf"},"version_id":"a26cd892-b881-4d65-bc4a-bf6361c5178f"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"computer simulation","subitem_subject_scheme":"Other"},{"subitem_subject":"element-free Galerkin method","subitem_subject_scheme":"Other"},{"subitem_subject":"Krylov space method","subitem_subject_scheme":"Other"},{"subitem_subject":"meshless approach","subitem_subject_scheme":"Other"},{"subitem_subject":"QR decomposition","subitem_subject_scheme":"Other"},{"subitem_subject":"saddle-point problem","subitem_subject_scheme":"Other"}]},"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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Linear-System Solver for EFG-Type Saddle-Point Problem without Using QR Decomposition","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Linear-System Solver for EFG-Type Saddle-Point Problem without Using QR Decomposition"}]},"item_type_id":"10001","owner":"21","path":["7"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-03-23"},"publish_date":"2022-03-23","publish_status":"0","recid":"11122","relation_version_is_last":true,"title":["Linear-System Solver for EFG-Type Saddle-Point Problem without Using QR Decomposition"],"weko_creator_id":"21","weko_shared_id":-1},"updated":"2023-09-29T04:24:43.694449+00:00"}