No CrossRef data available.
Published online by Cambridge University Press: 20 November 2018
Let E be an n-dimensional real affine space, V its vector space of translations and A(E) the affine group of E. Suppose that (. , .) is a nondegenerate symmetric bilinear form on F of signature (n — 1, 1), O(V) its orthogonal group and S(V) its group of similarities.