再论Brezis-Browder定理及n阶Fitzpatrick函数的性质
The Brezis-Browder Theorem revisited and properties of Fitzpatrick functions of order n
摘要:
本文研究了自反巴拿赫空间上的线性关系(集值算子与线性图)的极大单调性。本文给出了Brezis-Browder的一个结果的一个新的简单的证明,该结果指出:一个具有闭图的单调线性关系是极大单调的当且仅当它的伴随是单调的.我们还研究了Fitzpatrick函数,并给出了单调对称线性关系的n阶Fitzpatrick函数的一个显式公式。
英文摘要:
In this note, we study maximal monotonicity of linear relations (set-valued operators with linear graphs) on reflexive Banach spaces. We provide a new and simpler proof of a result due to Brezis-Browder which states that a monotone linear relation with closed graph is maximal monotone if and only if its adjoint is monotone. We also study Fitzpatrick functions and give an explicit formula for Fitzpatrick functions of order n for monotone symmetric linear relations.
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