2021-09-26T21:49:51Zhttps://kitami-it.repo.nii.ac.jp/oaioai:kitami-it.repo.nii.ac.jp:000063862021-03-01T06:52:55ZNote on Convex Subgroups of Partially Ordered Abelian GroupsISOBE, Kiro32402application/pdfLet G be a partially ordered abelian group and generated by G^＋.For two convex subgroups H and K of G，looking at the question generally we cannot obtain that H＋K is convex. We show some examples in such a case and we investigate into the case that H＋K is convex.departmental bulletin paper北見工業大学1975-11application/pdf北見工業大学研究報告17197199https://kitami-it.repo.nii.ac.jp/record/6386/files/7-1-18.pdfeng