1 “..., frequently preceded by definitions and motivation, and sometimes followed by corollaries and historical...”

2 “... VI, the five preceding chapters forming an introduction and the three following ones giving...”

3 “... of isometries precedes the extensive analytic treatment of isometries, similarities and affinities. A new...”

4 “... preceded the work of Bernard Malgrange [23] on what is now known as the Malgrange Preparation Theorem-which...”

5 “... are important to life (one of the patterns on the preceding pages). We cannot live without them. How do we...”

6 “..., robotics, etc. ). One of the aims of this book is to extend the preceding con­ cepts to this new situation...”