# Anallagmatic geometry

From Encyclopedia of Mathematics

A geometry that studies the properties of figures which are invariant with respect to circle transformations (cf. Circle transformation) of the extended plane, i.e. of the Euclidean plane completed by a point at infinite distance.

**How to Cite This Entry:**

Anallagmatic geometry.

*Encyclopedia of Mathematics.*URL: http://www.encyclopediaofmath.org/index.php?title=Anallagmatic_geometry&oldid=32485

This article was adapted from an original article by A.B. Ivanov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article