{"created":"2023-06-20T15:10:28.917669+00:00","id":6663,"links":{},"metadata":{"_buckets":{"deposit":"d4beb525-c975-4076-b143-6fe9c6519a13"},"_deposit":{"created_by":3,"id":"6663","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"6663"},"status":"published"},"_oai":{"id":"oai:ynu.repo.nii.ac.jp:00006663","sets":["616:627:646"]},"author_link":["29515"],"item_6_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1980","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1&2","bibliographicPageEnd":"85","bibliographicPageStart":"69","bibliographicVolumeNumber":"28","bibliographic_titles":[{"bibliographic_title":"Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学"}]}]},"item_6_description_17":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_6_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We introduce a new invariant ＄￥tilde{￥Gamma}(￥alpha)＄ , a closed subsemigroup of the dual of ＄G＄, of a ＄c*＄-dynamical system ＄(￥mathfrak{a}, G, ￥alpha)＄ where ＄￥mathfrak{a}＄ is a ＄C^{*}＄-algebra, and ＄G＄ is a locally compact abelian group with an action ＄￥alpha＄ on ＄￥mathfrak{a}＄ . We show that the crossed product ＄a￥times.G＄ is simple if and only if ＄￥mathfrak{a}＄ is ＄￥alpha＄-simple (i.e. ＄￥mathfrak{a}＄ does not have any non-trivial a-invariant ideals) and ＄￥tilde{￥Gamma}(￥alpha)＄ equals the dual of ＄G＄. We discuss some cases where ＄￥tilde{￥Gamma}(￥alpha)＄ coincides with the Connes spectrum ＄￥Gamma(￥alpha)＄ . Finally we give examples of simple crossed products of Cuntz algebras by locally compact abelian groups.","subitem_description_type":"Abstract"}]},"item_6_publisher_35":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Yokohama City University"}]},"item_6_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA0089285X","subitem_source_identifier_type":"NCID"}]},"item_6_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00440523","subitem_source_identifier_type":"ISSN"}]},"item_6_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Department of Mathematics, Yokohama City University, Yokohama, Japan"}]},"item_6_version_type_18":{"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":[{"creatorNames":[{"creatorName":"Kishimoto, Akitaka"}],"nameIdentifiers":[{"nameIdentifier":"29515","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":"2016-09-26"}],"displaytype":"detail","filename":"YMJ_28_N1-2_1980_069-085.pdf","filesize":[{"value":"1.4 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"YMJ_28_N1-2_1980_069-085.pdf","url":"https://ynu.repo.nii.ac.jp/record/6663/files/YMJ_28_N1-2_1980_069-085.pdf"},"version_id":"2ce848f7-a263-47c4-b7ae-4ec8e8d91a48"}]},"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":"SIMPLE CROSSED PRODUCTS OF ＄C^{*}＄ -ALGEBRAS BY LOCALLY COMPACT ABELIAN GROUPS","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"SIMPLE CROSSED PRODUCTS OF ＄C^{*}＄ -ALGEBRAS BY LOCALLY COMPACT ABELIAN GROUPS"}]},"item_type_id":"6","owner":"3","path":["646"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-12-15"},"publish_date":"2009-12-15","publish_status":"0","recid":"6663","relation_version_is_last":true,"title":["SIMPLE CROSSED PRODUCTS OF ＄C^{*}＄ -ALGEBRAS BY LOCALLY COMPACT ABELIAN GROUPS"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-20T18:37:09.849366+00:00"}