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A transformation of a pseudo-Euclidean space which converts points at a real distance from each other into points at a purely-imaginary distance . The motions and anti-motions of a pseudo-Euclidean space together form a group.

How to Cite This Entry:
Anti-motion. Encyclopedia of Mathematics. URL:
This article was adapted from an original article by A.B. Ivanov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article