A semigroup (S,·) is called right (left) quasiresiduated if for any a,b in S there exists x in S such that ax ≤s b (xa......

在同方差假设之下,线性模型在回归分析的理论与应用方面起着突出的作用,很受许多研究工作者的青睐.然而,回归模型中同方差性这一标......