We study the effects on D of assuming that the power series ring D[[X]] is a v-domain or a Prufer v-multiplication domain (PVMD). We show that a PVMD D is completely integrally closed if and only if boolean AND(infinity)(n=1)(I-n)(v) = (0) for every proper t-invertible t-ideal I of D. Using this, we show that if D is an almost GCD domain, then D[[X]] is integrally closed if and only if D is a completely integrally closed PVMD with torsion t-class group. We also determine several classes of PVMDs for which being Archimedean is equivalent to being completely integrally closed and give some new characterizations of integral domains related to Krull domains.
机构:
Sichuan Normal Univ, Inst Math & Software Sci, Chengdu 610068, Peoples R China
SW Univ Nationalities, Coll Comp Sci & Technol, Chengdu 610041, Peoples R ChinaSichuan Normal Univ, Inst Math & Software Sci, Chengdu 610068, Peoples R China
机构:
Chengdu Univ, Coll Teachers, Chengdu 610106, Sichuan, Peoples R ChinaChengdu Univ, Coll Teachers, Chengdu 610106, Sichuan, Peoples R China
Xing, Shiqi
Wang, Fanggui
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机构:
Sichuan Normal Univ, Coll Math & Software Sci, Chengdu 610068, Sichuan, Peoples R ChinaChengdu Univ, Coll Teachers, Chengdu 610106, Sichuan, Peoples R China