GIULIANA DAVIDOFF Mount Holyoke College, Massachusetts
PETER SARNAK Princeton University, New Jersey and New York University
AND ALAIN VALETTE UniversitEde Neuchatel, Switzerland

Elementary Number Theory, Group Theory and Ramanujan Graphs

Description: This text is a self contained treatment of expander graphs and in particular their explicit construction. Expander graphs are both highly connected but sparse, and besides their interest within combinatorics and graph theory, they also find various applications in computer science and engineering. The reader needs only a background in elementary algebra, analysis and combinatorics; the authors supply the necessary background material from graph theory, number theory, group theory and representation theory. The text can therefore be used as a brief introduction to these subjects as well as an illustration of how such topics are synthesised in modern mathematics.

Contents: 0. An overview; 1. Graph theory; 2. Number theory; 3. PSL2(q); 4. The graphs X^p,q; Appendix A. 4-regular graphs with large girth; Index; Bibliography.

Essential Information
First Author: Davidoff
Title: Elementary Number Theory, Group Theory and Ramanujan Graphs
ISBN, Binding, Price: 0-521-53143-8 Paperback
ISBN, Binding, Price: 0-521-82426-5 Hardcover
Pages: 200
Approximate Publication Date: c.31/12/2002
Main Subject Category: Maths - foundations, combinatorics
Series: London Mathematical Society Student Texts, No. 55

Market (Subject)
mathematics

Level
graduate students, academic researchers

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STEVEN R. FINCH MathSoft Inc.

Mathematical Constants

Description: Famous mathematical constants include the ratio of circular circumference to diameter, pi=3.14 E and the natural logarithmic base, e=2.178 EStudents and professionals usually can name at most a few others, but there are many more buried in the literature and awaiting discovery. How do such constants arise, and why are they important? Here Steven Finch provides 136 essays, each devoted to a mathematical constant or a class of constants, from the well known to the highly exotic. Topics covered include the statistics of continued fractions, chaos in nonlinear systems, prime numbers, sum-free sets, isoperimetric problems, approximation theory, self-avoiding walks and the Ising model (from statistical physics), binary and digital search trees (from theoretical computer science), the Prouhet-Thue-Morse sequence, complex analysis, geometric probability and the traveling salesman problem. This book will be helpful both to readers seeking information about a specific constant, and to readers who desire a panoramic view of all constants coming from a particular field, for example combinatorial enumeration or geometric optimization. Unsolved problems appear virtually everywhere as well. This is an outstanding scholarly attempt to bring together all significant mathematical constants in one place.

Contents: Preface; Notation; 1. Well-known constants; 2. Constants associated with number theory; 3. Constants associated with analytic inequalities; 4. Constants associated with the approximation of functions; 5. Constants associated with enumerating discrete structures; 6. Constants associated with functional iteration; 7. Constants associated with complex analysis; 8. Constants associated with geometry; Table; Index.

Essential Information
First Author: Finch
Title: Mathematical Constants
ISBN, Binding, Price: 0-521-81805-2 Hardback
Pages: 500
Approximate Publication Date: c.31/01/2003
Main Subject Category: Mathematics (general)
Series: Encyclopedia of Mathematics and its Applications, No. 94

Market (Subject)
mathematics

Level
academic researchers, graduate students

Bibliographic Details
62 line diagrams 9 tables

Sir David R. Cox Nuffield College, Oxford University, Oxford, UK
Patty Solomon The University of Adelaide, Australia

Components of Variance

Series: Monographs on Statistics and Applied Probability

ISBN: 1-58488-354-5
Publication Date: 9/20/2002
Number of Pages: 192

Forms essential reading for those interested in repeated measures, multi-level models, ANOVA, and over-dispersion
Contains in-depth discussion using only the essential technical details, making the treatment accessible to a wide audience, from statisticians to applied research scientists
Incorporates signposting to enhance accessibility and make it valuable as both a reference a supplementary text for coursework
Includes in each chapter a full bibliography, exercises, and computational and software notes

The components of variance is a notion essential to statisticians and quantitative research scientists working in a variety of fields, including the biological, genetic, health, industrial, and psychological sciences. Co-authored by Sir David Cox, the pre-eminent statistician in the field, this book provides in-depth discussions that set forth the principles of the subject. It focuses on developing the models that form the basis for detailed analyses as well as on the statistical techniques themselves. The authors include a variety of examples from areas such as clinical trial design, plant and animal breeding, industrial design, and psychometrics.

Edited by: F. De Martini and C. Monr

Experimental Quantum Computation and Information

International School of Physics Enrico Fermi, Volume 148

2002, 580 pp., hardcover
ISBN: 1-58603-270-4

This Fermi Summer School of Physics on "Experimental Quantum Information and Computing" represents a primer on one of the most intriguing and rapidly expanding new areas of physics. In this part, the interest in quantum information (QI) science is due to the discovery that a computer operating on quantum mechanical principles can solve certain important computational problems exponentially faster than any conceivable classical computer. But this interest is also due to the interdisciplinary nature of the field: the rapid growth is attributable, in part, to the stimulating confluence of researchers and ideas from physics, chemistry, mathematics, information theory, and computer science. Physics plays a paramount role in QI science, as we realize that computing is itself a physical process subject to physical laws. The incredible growth of classical computers and information processors in the 20th century stems from Turing's notion that a computer is independent of the physical device actually being used; be they relays, vacuum tubes, or semiconductor transistors. As we strive to build useful quantum information processors into the 21st century, we thus look for any physical system that obeys the laws of quantum mechanics, from single photons and atoms to quantum superconducting devices. These Fermi lectures take us on a journey through these and other promising current experimental candidates for QI processing, spanning quantum optics and laser physics, atomic and molecular physics, physical chemistry, and condensed-matter physics. While this broad coverage of experimental physics represents a challenge to the student, such an appreciation of these fields will be critical in the future success of quantum technology. Indeed, the most exciting feature of QI science is that the technology ultimately leading to a quantum processor is likely presently unknown.