"Lattices are discrete subgroups of maximal rank in a Euclidean space. To each such geometrical object, we can attach a canonical sphere packing which, assuming some regularity, has a density. The question of estimating the highest possible density of a sphere packing in a given dimension is a fascinating and difficult problem: the answer is known only up to dimension 3. This book thus discusses a beautiful and central problem in mathema ..."
Perfect Lattices in Euclidean Spaces(Reprint) (Grundlehren der mathematischen Wissenschaften) by JacquesMartinet Paperback, 526 Pages, Published 2010 by Springer ISBN-13: 978-3-642-07921-4, ISBN: 3-642-07921-0
"Lattices are discrete subgroups of maximal rank in a Euclidean space. To each such geometrical object, we can attach a canonical sphere packing which, assuming some regularity, has a density. The question of estimating the highest possible density of a sphere packing in a given dimension is a fascinating and difficult problem: the answer is known only up to dimension 3. This book thus discusses a beautiful and central problem in mathema ..."
"Cassels, A. Fröhlich, ed., Algebraic Number Theory, Academic Press, New-York (
1967). T.W. Chaundy, The arithmetic minima of positive quadratic forms (1), Quart
, J. Math. Oxford 17 (1946), 166-192. H. Cohen, A Course in Computational
Algebraic Number Theory, Graduate Texts in Math, 138, Springer-Verlag,
Heidelberg (1993). J.H. Conway, N.J.A. Sloane, Sphere Packings, Lattices and
Groups, Grundlehren 290, Springer-Verlag, Heidelberg ( ..."
"This book constitutes the refereed proceedings of the Third International Conference on Web-Age Information Management, WAIM 2002 held in Beijing, China in August 2002.The 40 papers presented together with two system demonstrations were carefully reviewed and selected from 169 submissions. The papers are organized in topical sections on XML; spatio-temporal databases; data mining and learning; XML and web; wo ..."
"L'article de Engel, Michel + ) et Senechal se rattache à la théorie des cellules de
Voronoï, dont la dimension n est celle de l'espace du ... le décès de Louis Michel,
professeur à l'I.H.E.S. Une notice nécrologique, écrite par ses deux co-auteurs
Peter Engel et Marjorie Senechal, lui rend hommage dans ce volume. LOUIS
MICHEL Louis Michel, theoretical physicist and professor emeritus of
PRÉAMBULE 7."
"Jacques Martinet, Louis-Marie Houdebine, Herbert-H Head. animal cells that can
bind to pectins and p-glucans and to ... EDERY M, HOUDEBINE LM, DJIANE J,
KELLY PA (1984) Studies of p-casein content of normal and neoplastic rat
mammary tissues by a homologous radioimmunoassay. Mol Cell Endocrinol 34:
145-151 3. ... SAWADOGO L (1987) Contribution à l'étude des plantes
médicinales et de la pharmacopée tra- ditionnelle africaine. Thèse ..."
"This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, ..."
"Voir F.R. Ksch>schang [PI] W. Plesken, Finite modular groups of prime degree
and circulants, J. Algebra 97 (1985), ... [Ranl] R.A. Rankin, On positive definite
quadratic forms, J. London Math. ... [Rei] I. Reiner, Maximal orders, London Math."