Results 271 to 280 of about 625,401 (305)

Mixing Actions of Locally Compact Groups

Mathematical Notes
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Locally Homogeneous Actions and Universal Extensions of Groups

Journal of the London Mathematical Society, 1993
Summary: We study further the class of universal locally finite (u.l.f) \(\mathcal M\)- extensions \(E\) of a countable group \(G\) in which the centralizer \(C_E(G)\) is countable. These were introduced by the author and \textit{R. Phillips} [in Proc. 2nd Int. Conf. Theory of groups 1989, Rend. Circ. Mat. Palermo, II. Ser.
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Actions of locally nilpotent groups on Λ-trees

Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 1999
For certain classes of groups, it is shown that there are restrictions on the type of action a group in the class can have on a Λ-tree, where Λ is an arbitrary ordered abelian group, generalizing results by other authors in the case Λ = ℝ. The main classes considered are locally nilpotent, polycyclic by finite, locally (polycyclic by finite) and ...
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Multiple mixing and local rank group actions

Ergodic Theory and Dynamical Systems, 2003
Summary: Let \(r \geq 1\); the Følner sequence \(\{F^{n,1}\}_{n= 1}^\infty\), \(\{F^{n,2}\}_{n=1}^\infty,\dots, \{F^{n,r}\}_{n= 1}^\infty\) satisfies the bounded intersection property if there is a constant \(p\) such that, for any \(n\in\mathbb{N}\) and \(1\leq i\leq r\), each \(F^{n,i}\) can intersect no more than \(p\) disjoint translates of \(F^{n ...
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Locality regularized group sparse coding for action recognition

Computer Vision and Image Understanding, 2017
Bag of visual words (BoVW) models are widely utilized in image/ video representation and recognition. The cornerstone of these models is the encoding stage, in which local features are decomposed over a codebook in order to obtain a representation of features.
Mohammad Ali Bagheri, Qigang Gao, Sergio Escalera, Thomas B. Moeslund, Huamin Ren, Elham Etemad   +5 more
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Local Properties of Algebraic Group Actions

1989
In this article we present a fundamental result due to Sumihiro. It states that every normal G-variety X, where G is a connected linear algebraic group, is locally isomorphic to a quasi-projective G-variety, i.e., to a G-stable subvariety of the projective space P n with a linear G-action (Theorem 1.1).
Friedrich Knop, Hanspeter Kraft, Domingo Luna, Thierry Vust   +3 more
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Local product structure for group actions

Ergodic Theory and Dynamical Systems, 1991
AbstractA differentiable G-space is introduced, for a Lie group G, into which every countably separated Borel G-space can be imbedded. The imbedding can be a continuous map if the space is a separable metric space. Such a G-space is called a universal G-space. This universal G-space has a local product structure for the action of G.
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Local collective action for sustainability transformations: emerging narratives from local energy initiatives in The Netherlands

Sustainability Science, 2022
Mustafa Hasanov
exaly  

LOCAL CONNECTIVITY OF SPACES OF GROUP ACTIONS

The Quarterly Journal of Mathematics, 1976
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Mildly Mixing Actions of Locally Compact Groups

Proceedings of the London Mathematical Society, 1982
Schmidt, Klaus, Walters, Peter
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