2024-03-28T19:26:24Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/54552019-04-25T03:35:30Zhdl_2115_680hdl_2115_1161990年度談話会アブストラクト集 Colloquium Lectures 北海道大学理学部数学教室Giga, Y.Watatani, Y.410Department of Mathematics, Hokkaido UniversityDepartmental Bulletin Paperapplication/pdfhttp://hdl.handle.net/2115/5455info:doi/10.14943/5140https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/5455/1/21.pdf1348-4338AA11958720Hokkaido University technical report series in mathematics2111991-01-01jpnpublisher