论文信息 - THE HILBERT METRIC AND GROMOV HYPERBOLICITY

THE HILBERT METRIC AND GROMOV HYPERBOLICITY

A clamp for fixing an electric or hydraulic line to a wall surface, comprising a pair of gripping portions hingedly connected to each other and end portions extending from the gripping portions and formed with holes to receive a screw by which the clamp is to be fastened to the wall surface, wherein the end portions are further formed of catch portions such as a hook and a projection integral with the end portions. The catch portions are adapted to releasably lock the gripping portions to each other so that a desired number of clamps can be temporarily fitted to the electric or hydraulic line before the line is fixed to the wall surface. The hinged connection between the gripping portions can be provided through formation of a lateral notch in an inner face of the clamp between the gripping portions.

Anders Karlsson | A. Karlsson | G. A. Noskov | Guennadi A. Noskov

[1] Graham A. Niblo,et al. On Hibert's Metric for Simplices , 1993 .

[2] V. Metz. Hilbert′s Projective Metric on Cones of Dirichlet Forms , 1995 .

[3] Anders Karlsson,et al. Non-expanding maps and Busemann functions , 2001, Ergodic Theory and Dynamical Systems.

[4] Alan F. Beardon,et al. The dynamics of contractions , 1997, Ergodic Theory and Dynamical Systems.

[5] E. Straus,et al. Curvature in Hilbert geometries. , 1958 .

[6] Shôshichi Kobayashi. Projectively invariant distances for affine and projective structures , 1984 .

[7] G. Birkhoff. Extensions of Jentzsch’s theorem , 1957 .

[8] A. F. Beardon,et al. The Klein, Hilbert and Poincaré metrics of a domain , 1999 .

[9] M. Bonk,et al. Gromov hyperbolicity and the Kobayashi metric on strictly pseudoconvex domains , 2000 .

[10] Karl K. Turekian,et al. Academic press, inc. , 1995, Environmental science & technology.

[11] C. Liverani. Decay of correlations , 1995 .