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arXiv 1111.6094math.FA
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关于q-正性的新结果

New results on q-positivity

Y. García Ramos, J. E. Martínez-Legaz, S. Simons

摘要:

本文讨论对称自对偶空间,它是具有对称双线性型的简单实向量空间。空间的某些子集称为q-正的,其中q是由原来的双线性型导出的二次型。q-正性的概念推广了经典的关于巴拿赫空间与其对偶空间乘积的子集的单调性的概念。最大q正性则推广了最大单调性。我们讨论了用凸函数推广单调集表示的概念,以及q-正集的极大q-正扩张的个数。我们还讨论了对称自对偶巴拿赫空间,在其中增加了一个巴拿赫空间结构,给出了极大q-正性的新刻画.本文最后给出了两个新的例子。

英文摘要:

In this paper we discuss symmetrically self-dual spaces, which are simply real vector spaces with a symmetric bilinear form. Certain subsets of the space will be called q-positive, where q is the quadratic form induced by the original bilinear form. The notion of q-positivity generalizes the classical notion of the monotonicity of a subset of a product of a Banach space and its dual. Maximal q-positivity then generalizes maximal monotonicity. We discuss concepts generalizing the representations of monotone sets by convex functions, as well as the number of maximally q-positive extensions of a q-positive set. We also discuss symmetrically self-dual Banach spaces, in which we add a Banach space structure, giving new characterizations of maximal q-positivity. The paper finishes with two new examples.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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