Results 11 to 20 of about 2,517,805 (293)
Rotation and pseudo-rotation [PDF]
General Relativity and Gravitation, 2005 Eigenvectors of stress-energy tensor (the source in Einstein's equations) form privileged bases in description of the corresponding space-times. When one or more of these vector fields are rotating (the property well determined in differential geometry),
A.P. Lightman +11 more
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Journal of the London Mathematical Society, 2023 AbstractWe describe the infinite interval exchange transformations, called the rotated odometers, which are obtained as compositions of finite interval exchange transformations and the von Neumann–Kakutani map. We show that with respect to Lebesgue measure on the unit interval, every such transformation is measurably isomorphic to the first return map ...
Bruin, H., Lukina, O.
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Mathematical Methods in the Applied Sciences, 2021 Many problems in computer vision today are solved via deep learning. Tasks like pose estimation from images, pose estimation from point clouds or structure from motion can all be formulated as a regression on rotations. However, there is no unique way of parametrizing rotations mathematically: matrices, quaternions, axis-angle representation or Euler ...
Alberto Pepe +2 more
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Rotational autokeratoplasty [PDF]
Eye, 1989 The results of sixteen patients who had undergone ipsilateral rotational autokeratoplasty are presented. Thirteen patients obtained significant visual improvement, and eight patients achieved an acuity of 6/12 or better. There were no significant pre-operative or post-operative complications.
P J, McDonnell, M G, Falcon
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The Physics Teacher, 1998 We discuss two basic properties of angular displacements, namely, the anticommutation of finite rotations, and the commutation of infinitesimal rotations, and show how commutation is achieved as the angular displacement gets smaller and smaller.
Bolina, Oscar, Neto, J. A. da Silva
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Journal of High Energy Physics, 1999 We present a class of spacetime rotations that preserve a proportion of spacetime supersymmetry. We then give the rules for superposing these rotations with various branes to construct rotating brane solutions which preserve exotic fractions of supersymmetry.
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Rotations and rotation matrices [PDF]
Acta Crystallographica Section D Biological Crystallography, 2001 In molecular replacement, a model, described as a list of orthogonal coordinates, is to be moved into a new position and orientation. The orthogonal coordinate system also has to be related to the crystallographic system, which may not be orthogonal, and crystallographic symmetry must be considered, which applies to coordinates expressed as fractions ...
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Modeling and Experimental Study on the Micro-Vibration Transmission of a Control Moment Gyro
IEEE Access, 2019 A control moment gyro (CMG) is the main source of vibration disturbance in the spacecraft. This paper presents a vibration mathematical model with 18 degrees of freedom by Lagrange energy method, for solving the problem that the transmission mechanism ...
Dengyun Wu +6 more
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International Journal of Computer Vision, 2013 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hartley, Richard +3 more
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Oncology Reviews, 2011 The aim of this study is to compare different modalities used for the treatment of recurrent respiratory papillomatosis (RRP) in adults and children in terms of their clinical effect and the duration of benefit. Systematic review of papers was written in
Elina Kiverniti +2 more
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