Table of Contents
Textures and Microstructures
Volume 30 (1997), Issue 1-2, Pages 1-42

Geometrical Foundations of Texture Analysis. Geodesic Curves and Motions in the group Space of Three-Dimensional Rotations

1Institute of Solid State Physics, Russian Academy of sciences, Chernogolovka, Moscow District 142 432, Russia
2Department of Physical Metallurgy, TU Clausthal, Germany

Received 10 April 1997

Copyright © 1997 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Principal concepts and selected results relating to the inner geometry of the three-dimensional rotation group SO(3) are presented in a form which is appropriate for further applications to various problems of texture analysis. Starting from the basic concepts of regular and piecewise regular curves in the group space SO(3) we consider the functional of the angular length and introduce further geodesic curves. It is shown that the geodesics can be fully characterized, in the group-theoretical terms, as cosets of all possible one-parametric subgroups in the space SO(3). Two kinds of parallelism between geodesics in the group space are discussed as well as related congruences. Geodesic curves are characterized also in terms of their constitutive vectors. The related transformational rules under motions are obtained. The geometrical structure of general motions and non-euclidean rotations of the space SO(3) is described on the base.