1. His grandfather, Boris Delaunay, was a prominent Soviet mathematician and creator of the Delaunay triangulation.

2. A particularly interesting kind of triangulations are the Delaunay triangulations.

3. Henri Delaunay was the first general secretary and Ebbe Schwartz the first president.

4. SEE ALSO: Connected Set, Convex Function, Concave Polygon, Convex Hull, Convex Optimization Theory, Convex Polygon, Delaunay Triangulation, Simply Connected.

5. He is the only jazz accordionist who is a member of the famous Hot Club de France, conducted by Charles Delaunay.

6. The principles of Delaunay triangulation, Voronoi Diagrams, convex analysis of heart electrical instability in atrial fibrillation, flutter, Binodal syndrome patients as basis for diagnosis were

7. Of the original order for 3,530, Renault accounted for 1,850 (52 per cent), Berliet 800 (23 per cent), SOMUA (a subsidiary of Schneider & Cie) 600 (17 per cent), and Delaunay-Belleville 280 (8 per cent).