Sphere packings

"Sphere packings is one of the most fascinating and challenging subjects in mathematics. Almost four centuries ago, Kepler studied the densities of sphere packings and made his famous conjecture. Several decades later, Gregory and Newton discussed the kissing numbers of spheres and proposed the Gregory-Newton problem. Since then, these problems and related ones have attracted the attention of many prominent mathematicians."--BOOK JACKET. "This tract gives full account of this subject. In addition to the classical sphere packing problems, it also deals with the contemporary ones; such as,…