Our main purpose is to characterize the class of almost perfect domains (introduced by
Bazzoni and Salce [S. Bazzoni, L. Salce, Almost perfect domains, Colloq. Math. 95 (2003) …

Full article: Divisible Is Injective over Krull Domains Skip to Main Content Taylor and Francis
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We show that a weak-injective module over an integral domain need not be pure-injective
(Theorem 2.3). Equivalently, a torsion-free Enochs-cotorsion module over an integral …

We give a proof, based on the analysis of the divisible envelopes of flat modules, of the fact
that an integral domain R is almost perfect if and only if all divisible R-modules are weak …

We revisit two questions concerning the existence of a single test module by comparing
them with similar questions (see Theorem 3.3). As a corollary, we identify domains over …

Some of the most familiar cotorsion and Tor pairs on integral domains do not extend to rings
R with divisors of zero. A closer look shows that for some of them the validity hinges on the …

n-FI-内射模和n-FI-平坦模的若干性质-[维普官方网站]-www.cqvip.com-维普网  我的维普 购物车
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主要利用Leray-Schauder 不动点定理和一些新的分析技巧, 讨论了这类具有多个变时滞和变
参数的p-Lapcaian 中立型泛函微分方程:(φp (x'(t)-sun from i= 1 to n (ci (t) x'(t-ri)))')= f (x'(t))+ …

Over integral domains, we characterize modules of finite weak dimension⩽ n in terms of h-
divisible pure-injective modules (Theorems 2.1 and 2.2). We compare various classes of h …