Positivity ( IF 1 ) Pub Date : 2020-11-18 , DOI: 10.1007/s11117-020-00795-1 Pedro Poitevin
In their book Randomly Normed Spaces, Haydon, Levy, and Raynaud proved that every sublattice of a Musielak-Orlicz space \(L_\psi \) with random sections \(\psi (\cdot ,\omega )\) in a given set D can be represented as a Musielak–Orlicz space \(L_{\psi '}\) with random sections \(\psi '(\cdot ,\omega )\) in the closure (in the product topology) of the convex hull of D. In this note we prove that if \(L_{\psi '}\) is a Musielak–Orlicz space with random sections \(\psi '(\cdot ,\omega )\) in the closure of the convex hull of a set D closed under dilations, then there exists a Musielak–Orlicz space \(L_\psi \) with random sections \(\psi (\cdot ,\omega )\) in D such that \(L_{\psi '}\) is a sublattice of \(L_\psi \). Furthermore, \(L_\psi \) can be chosen to have the same density character as \(L_{\psi '}\).
中文翻译:
关于Orlicz格的表示的注释
Haydon,Levy和Raynaud在他们的书《随机范数空间》中证明,在给定集中具有任意截面\(\ psi(\ cdot,\ omega)\)的Musielak-Orlicz空间\(L_ \ psi \)的每个子格D可以表示为凸包的闭合(在产品拓扑中)具有随机截面\(\ psi'(\ cdot,\ omega)\)的Musielak-Orlicz空间\(L _ {\ psi'} \)的d。在本注释中,我们证明如果\(L _ {\ psi'} \)是Musielak–Orlicz空间,且在集合的凸包封闭中具有随机部分\(\ psi'(\ cdot,\ omega)\)d在膨胀下封闭,然后存在一个Musielak–Orlicz空间\(L_ \ psi \),其中D中有随机部分\(\ psi(\ cdot,\ omega)\),使得\(L _ {\ psi'} \)为的亚晶格\(L_ \ PSI \) 。此外,可以选择\(L_ \ psi \)具有与\(L _ {\ psi'} \)相同的密度特征。