In this note we prove Yosida duality --- that is: the category of compact Hausdorff spaces with continuous maps is dually equivalent to the category of uniformly complete Archimedean Riesz spaces with distinguished units and unit-preserving Riesz homomorphisms between them.
Strong completeness of a class of L2-type Riesz spaces
将强收敛和依概率收敛推广到具有条件期望算子T的Riesz空间的情形。Azouzi,W. C. Kuo,K.拉姆萨尔湾A. Watson,Convergence in Riesz spaces with条件期望算子,Positivity,19(2015),647-657]分别作为T-强收敛和T-条件概率收敛。在[C. C. A.拉布沙尼湾A. Watson,Riesz空间中的离散随机积分,Positivity,14(2010),859-875]。在[W. Kuo,M. Rogans,文学士Watson,Mixing processes in Riesz spaces,Journal of Mathematical Analysis and Application,456(2017),992-1004],其中还表明R(T)是泛完备f-代数,并且这些空间是R(T)-模。在[Y. Azouzi,M. Trabelsi,Lp-spaces with regard to条件期望on Riesz spaces,Journal of Mathematical Analysis and Application,447(2017),798-816]谓词演算用于考虑p 2(1;1)的Lp(T)。[W.-]建立了条件期望算子T的自然域空间L1(T)的强序列完备性和L1(T)的强完备性C. Kuo,D.罗达…
Riesz Transform Characterization and Fefferman-Stein Decomposition of Triebel-Lizorkin Spaces
设$D\in\mathbb{N}$,$q\in[2,\infty)$和$(\mathbb{R}^D,|\cdot|,dx)$是具有$D$维勒贝格测度的欧氏空间.本文通过小波展开定义的辅助函数空间$\mathrm{WE}^{1,\,q}(\mathbb R^D)$,建立了Triebel-Lizorkin空间$\dot{F}^0_{1,\,q}(\mathbb{R}^D)$的里斯变换刻画.由此得到了Triebel-Lizorkin空间$\dot{F}^0_{\infty,\,q'}(\mathbb{R}^D)$的Festhiman-Stein分解.最后,作者给出了一个显式的例子,说明$\dot{F}^0_{1,\,q}(\mathbb{R}^D)$严格包含在$\mathrm{WE}^{1,\,q}(\mathbb{R}^D)$和,通过对偶,$\mathrm{WE}^{\infty,\,q'}(\mathbb{R}^D)$严格包含在$\dot{F}^0_{\infty,\,q'}(\mathbb{R}^D)$。虽然当$D=1$由C.- C. Lin等人[Michigan Math.J.62(2013),691-703],如C. C. Lin等人,在$D=1$情况下使用的方法不能应用于$D\ge2$情况,这需要一些新的技巧。