منابع مشابه
Metastability in the Furstenberg-Zimmer Tower
According to the Furstenberg-Zimmer structure theorem, every measure-preserving system has a maximal distal factor, and is weak mixing relative to that factor. Furstenberg and Katznelson used this structural analysis of measure-preserving systems to provide a perspicuous proof of Szemerédi’s theorem. Beleznay and Foreman showed that, in general, the transfinite construction of the maximal dista...
متن کاملAuthors' Response to Zimmer et al
Khush Mittal I read the paper by Chi et al. with interest. The authors found a greater hypoxia response gene expression in carcinomas than stromal cells grown in vitro, but were not sure of the underlying explanation (see Discussion in [1]). The underlying explanation may be the difference in mitotic activity and hence metabolic activity between these two cell types, such that hypoxia may be pr...
متن کاملWhy we need reading-glasses before a zimmer-frame
Accommodative loss represents the fastest human biological decrement. Why? To examine this, the shape of the eye-lens during accommodation or its relaxation is analysed with special reference to age-related changes. The capsule is viewed as a force transmitter: the distribution of forces along centripetal capsular arcs and the resulting stresses and strains are calculated. The effect of zonular...
متن کاملGroups Acting on Manifolds: around the Zimmer Program
This paper is a survey on the Zimmer program. In its broadest form, this program seeks an understanding of actions of large groups on compact manifolds. The goals of this survey are (1) to put in context the original questions and conjectures of Zimmer and Gromov that motivated the program, (2) to indicate the current state of the art on as many of these conjectures and questions as possible an...
متن کاملSome Remarks Inspired by the C 0 Zimmer Program
In the mid 80’s when I just arrived in Chicago, Bob Zimmer was lecturing on his recent work showing how perturbations of isometric actions of Kazhdan groups were dynamically simple (preserve a measurable Riemannian metric) [Zi1]. The heady mixture of the beauty of the results, the audacity of the vision (this is really 0% of what should be true...), and Bob’s charisma and charm attracted me so ...
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ژورنال
عنوان ژورنال: Figurationen
سال: 2018
ISSN: 1439-4367,2194-363X
DOI: 10.7788/figurationen-2018-190106