Neuman均值不等式的新探讨与最优界限

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本篇论文标题为"Notes on Certain Inequalities for Neuman Means",发表在《不等式与应用》杂志上,于2014年由Chen等人撰写。该研究聚焦于Neuman均值的一系列不等式,这是一种特殊类型的数学工具,在理论数学,特别是特殊函数理论中占有重要地位。 Neuman均值是基于三个非负实数a、b和c的算子,其定义涉及第一类对称积分RF(a, b, c),即从0到无穷大对(t+a)(t+b)(t+c)函数的积分,其中t的系数为-1/2。当这个积分简化到特定的特殊情况时,就形成了所谓的Neuman组合RC,它在数学分析中具有广泛的应用。 文章的主要贡献在于给出了Neuman均值NAH、NHA、NAC和NCA的明确表达形式,这四个均值分别是通过不同的方式结合了调和均值H、算术均值A和反调和均值C。作者不仅提供了这些均值的公式,还探讨了如何用H、A和C的最佳可能组合来确定它们的上界和下界。这样的结果对于理解这些均值的性质以及它们在优化问题、概率论、统计学等领域的潜在应用具有重要意义。 本文的研究属于数学分析领域中的不等式理论(MSC分类:26E60),关键词包括 Schwab-Borchardt均值、Neuman均值、调和均值、算术均值以及反调和均值。这些关键词表明了作者研究的焦点在于比较和分析不同均值之间的关系,以揭示它们之间可能存在的内在联系或性质界限。 这篇论文是对Neuman均值不等式深入研究的成果,为该领域的理论发展提供了一定量化的表达和新的洞察,同时也为其他数学工作者处理类似问题提供了实用的工具和参考。对于那些关注特殊函数理论,特别是均值比较和优化问题的人来说,这篇文章具有较高的学术价值。

帮我地道的翻译:The differential variational inequalities ((DVIs), for short) are useful for the study of models involving both dynamics and constraints in the form of in￾equalities. They arise in many applications: electrical circuits with ideal diodes, Coulomb friction problems for contacting bodies, economical dynamics, dynamic traffic networks. Pang and Stewart [26], [27] established the existence, unique￾ness, and Lipschitz dependence of solutions subject to boundary conditions for (DVIs) in finite dimensional spaces. Han and Pang investigated a class of dif￾ferential quasi-variational inequalities in [11], and Li, Huang and O’Regan [18] studied a class of differential mixed variational inequalities in finite dimensional Well-Posedness of Differential Mixed Quasi-Variational-Inequalities 137 spaces. Gwinner [8] obtained an equivalence result between (DVIs) and projected dynamical systems. In [9] he also proved a stability property for (DVIs) by using the monotonicity method of Browder and Minty, and Mosco set convergence. Chen and Wang [4] studied dynamic Nash equilibrium problems which have the formulation of differential mixed quasi-variational inequalities. Elastoplastic contact problems can also be incorporated into (DMQVIs) formulation because general dynamic processes in the nonsmooth unilateral contact problems are governed by quasi-variational inequalities. A numerical study for nonsmooth contact problems with Tresca friction can be found in [10], Liu, Loi and Obukhovskii [19] studied the existence and global bifurcation for periodic solutions of a class of (DVIs) by using the topological degree theory for multivalued maps and the method of guiding functions. For more details about (DVIs) we refer to [3], [30], [12], [22]–[21].

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