Edited by: Regina Y. Liu, Rutgers University, New Brunswick, NJ, Robert Serfling, University of Texas at Dallas, Richardson, TX, and Diane L. Souvaine, Tufts University, Medford, MA

Data Depth:
Robust Multivariate Analysis, Computational Geometry and Applications

DIMACS: Series in Discrete Mathematics and Theoretical Computer Science, Volume: 72.
2006; 246 pp; hardcover
ISBN-10: 0-8218-3596-3
ISBN-13: 978-0-8218-3596-8

The book is a collection of some of the research presented at the workshop of the same name held in May 2003 at Rutgers University. The workshop brought together researchers from two different communities: statisticians and specialists in computational geometry. The main idea unifying these two research areas turned out to be the notion of data depth, which is an important notion both in statistics and in the study of efficiency of algorithms used in computational geometry. Many of the articles in the book lay down the foundations for further collaboration and interdisciplinary research.

Readership

Graduate students and research mathematicians interested in multivariate analysis and computational geometry.

Table of Contents

R. Serfling -- Depth functions in nonparametric multivariate inference
R. Y. Liu and K. Singh -- Rank tests for multivariate scale difference based on data depth
J. Wang and R. Serfling -- On scale curves for nonparametric description of dispersion
K. Mosler and R. Hoberg -- Data analysis and classification with the zonoid depth
A. Hartikainen and H. Oja -- On some parametric, nonparametric and semiparametric discrimination rules
A. Christmann -- Regression depth and support vector machine
R. T. Elmore, T. P. Hettmansperger, and F. Xuan -- Spherical data depth and a multivariate median
S. Lopez-Pintado and J. Romo -- Depth-based classification for functional data
J. A. Cuesta-Albertos and R. Fraiman -- Impartial trimmed means for functional data
G. Aloupis -- Geometric measures of data depth
B. Chakraborty and P. Chaudhuri -- Computation of half-space depth using simulated annealing
D. Bremner, K. Fukuda, and V. Rosta -- Primal-dual algorithms for data depth
M. A. Burr, E. Rafalin, and D. L. Souvaine -- Simplicial depth: An improved definition, analysis, and efficiency for the finite sample case
J. H. Dula -- Fast algorithms for frames and point depth
S. Krishnan, N. H. Mustafa, and S. Venkatasubramanian -- Statistical data depth and the graphics hardware

Edited by: Christos A. Athanasiadis, University of Athens, Hellas, Greece, Victor V. Batyrev, Universitat Tubingen, Germany, Dimitrios I. Dais, University of Crete, Hellas, Greece, Martin Henk, Otto von Guericke University, Magdeburg, Germany, and Francisco Santos, University of Cantabria, Santander, Spain

Algebraic and Geometric Combinatorics

Contemporary Mathematics, Volume: 423
2007; approx. 453 pp; softcover
ISBN-10: 0-8218-4080-0
ISBN-13: 978-0-8218-4080-1
Expected publication date is March 17, 2007.

This volume contains original research and survey articles stemming from the Euroconference "Algebraic and Geometric Combinatorics". The papers discuss a wide range of problems that illustrate interactions of combinatorics with other branches of mathematics, such as commutative algebra, algebraic geometry, convex and discrete geometry, enumerative geometry, and topology of complexes and partially ordered sets. Among the topics covered are combinatorics of polytopes, lattice polytopes, triangulations and subdivisions, Cohen-Macaulay cell complexes, monomial ideals, geometry of toric surfaces, groupoids in combinatorics, Kazhdan-Lusztig combinatorics, and graph colorings. This book is aimed at researchers and graduate students interested in various aspects of modern combinatorial theories.

Readership

Graduate students and research mathematicians interested in various topics in combinatorics.

Table of Contents

V. V. Batyrev -- Lattice polytopes with a given h*-polynomial
A. Conca, S. Hosten, and R. R. Thomas -- Nice initial complexes of some classical ideals
V. C. Quinonez -- Ratliff-Rush monomial ideals
P. Csorba and F. H. Lutz -- Graph coloring manifolds
D. I. Dais -- Geometric combinatorics in the study of compact toric surfaces
D. I. Dais, M. Henk, and G. M. Ziegler -- On the existence of Crepant resolutions of Gorenstein abelian quotient singularities in dimensions \geq 4
P. Fiebig -- Kazhdan-Lusztig combinatorics via sheaves on Bruhat graphs
G. Floystad -- Cohen-Macaulay cell complexes
D. N. Kozlov -- Homology tests for graph colorings
P. McMullen -- Polyhedra and polytopes: Algebra and combinatorics
B. Nill -- Classification of pseudo-symmetric simplicial reflexive polytopes
A. Paffenholz and A. Werner -- Constructions for 4-polytopes and the cone of flag vectors
R. T. Zivaljevic -- Groupoids in combinatorics-Applications of a theory of local symmetries

William Stein, University of Washington, Seattle, WA
with an appendix by Paul E. Gunnells

Modular Forms, a Computational Approach

Graduate Studies in Mathematics, Volume: 79
2007; 268 pp; hardcover
ISBN-10: 0-8218-3960-8
ISBN-13: 978-0-8218-3960-7
Expected publication date is March 23, 2007.

This marvellous and highly original book fills a significant gap in the extensive literature on classical modular forms. This is not just yet another introductory text to this theory, though it could certainly be used as such in conjunction with more traditional treatments. Its novelty lies in its computational emphasis throughout: Stein not only defines what modular forms are, but shows in illuminating detail how one can compute everything about them in practice. This is illustrated throughout the book with examples from his own (entirely free) software package SAGE, which really bring the subject to life while not detracting in any way from its theoretical beauty. The author is the leading expert in computations with modular forms, and what he says on this subject is all tried and tested and based on his extensive experience. As well as being an invaluable companion to those learning the theory in a more traditional way, this book will be a great help to those who wish to use modular forms in applications, such as in the explicit solution of Diophantine equations. There is also a useful Appendix by Gunnells on extensions to more general modular forms, which has enough in it to inspire many PhD theses for years to come. While the book's main readership will be graduate students in number theory, it will also be accessible to advanced undergraduates and useful to both specialists and non-specialists in number theory.

--John E. Cremona, University of Nottingham

William Stein is an associate professor of mathematics at the University of Washington at Seattle. He earned a PhD in mathematics from UC Berkeley and has held positions at Harvard University and UC San Diego. His current research interests lie in modular forms, elliptic curves, and computational mathematics.

Readership

Graduate students and research mathematicians interested in modular forms.

Table of Contents

Modular forms
Modular forms of level 1
Modular forms of weight 2
Dirichlet characters
Eisenstein series and Bernoulli numbers
Dimension formulas
Linear algebra
General modular symbols
Computing with newforms
Computing periods
Solutions to selected exercises
Appendix A: Computing in higher rank
Bibliography
Index


V. V. Prasolov, Independent University of Moscow, Russia

Elements of Homology Theory

Graduate Studies in Mathematics, Volume: 81
2007; approx. 424 pp; hardcover
ISBN-10: 0-8218-3812-1
ISBN-13: 978-0-8218-3812-9
Expected publication date is March 28, 2007.

The book is a continuation of the previous book by the author (Elements of Combinatorial and Differential Topology, Graduate Studies in Mathematics, Volume 74, American Mathematical Society, 2006). It starts with the definition of simplicial homology and cohomology, with many examples and applications. Then the Kolmogorov-Alexander multiplication in cohomology is introduced. A significant part of the book is devoted to applications of simplicial homology and cohomology to obstruction theory, in particular, to characteristic classes of vector bundles. The later chapters are concerned with singular homology and cohomology, and Cech and de Rham cohomology. The book ends with various applications of homology to the topology of manifolds, some of which might be of interest to experts in the area.

The book contains many problems; almost all of them are provided with hints or complete solutions.

Readership

Graduate students interested in algebraic topology.

Table of Contents

Simplicial homology
Cohomology rings
Applications of simplicial homology
Singular homology
Cech cohomology and de Rham cohomology
Miscellaneous
Hints and solutions
Bibliography
Index

Dana P. Williams, Dartmouth College, Hanover, NH

Crossed Products of C-*Algebras

Mathematical Surveys and Monographs, Volume: 134
2007; 528 pp; hardcover
ISBN-10: 0-8218-4242-0
ISBN-13: 978-0-8218-4242-3
Expected publication date is March 17, 2007.

The theory of crossed products is extremely rich and intriguing. There are applications not only to operator algebras, but to subjects as varied as noncommutative geometry and mathematical physics. This book provides a detailed introduction to this vast subject suitable for graduate students and others whose research has contact with crossed product C^*-algebras. In addition to providing the basic definitions and results, the main focus of this book is the fine ideal structure of crossed products as revealed by the study of induced representations via the Green-Mackey-Rieffel machine. In particular, there is an in-depth analysis of the imprimitivity theorems on which Rieffel's theory of induced representations and Morita equivalence of C^*-algebras are based. There is also a detailed treatment of the generalized Effros-Hahn conjecture and its proof due to Gootman, Rosenberg, and Sauvageot.

This book is meant to be self-contained and accessible to any graduate student coming out of a first course on operator algebras. There are appendices that deal with ancillary subjects, which while not central to the subject, are nevertheless crucial for a complete understanding of the material. Some of the appendices will be of independent interest.

To view another book by this author, please visit Morita Equivalence and Continuous-Trace C*-Algebras.

Readership

Graduate students and research mathematicians interested in C*-algebras.

Table of Contents

Locally compact groups
Dynamical systems and crossed products
Special cases and basic constructions
Imprimitivity theorems
Induced representations and induced ideals
Orbits and quasi-orbits
Properties of crossed products
Ideal structure
The proof of the Gootman-Rosenberg-Sauvageot theorem
Amenable groups
The Banach *-algebra L^1(G,A)
Bundles of C*-algebras
Groups
Representations of C*-algebras
Direct integrals
Effros's ideal center decomposition
The Fell topology
Miscellany
Notation and Symbol Index
Index
Bibliography

Edited by: V. I. Burenkov, Cardiff University, United Kingdom, T. Iwaniec, Syracuse University, NY, and S. K. Vodopyanov, Sobolev Institute of Mathematics, Novosibirsk, Russia

The Interaction of Analysis and Geometry

Contemporary Mathematics, Volume: 424
2007; approx. 342 pp; softcover
ISBN-10: 0-8218-4060-6
ISBN-13: 978-0-8218-4060-3
Expected publication date is April 12, 2007.

The papers in this volume are based on talks given at the International Conference on Analysis and Geometry in honor of the 75th birthday of Yurii Reshetnyak (Novosibirsk, 2004). The topics include geometry of spaces with bounded curvature in the sense of Alexandrov, quasiconformal mappings and mappings with bounded distortion (quasiregular mappings), nonlinear potential theory, Sobolev spaces, spaces with fractional and generalized smoothness, variational problems, and other modern trends in these areas. Most articles are related to Reshetnyak's original works and demonstrate the vitality of his fundamental contribution in some important fields of mathematics such as the geometry in the "large", quasiconformal analysis, Sobolev spaces, potential theory and variational calculus.

Readership

Graduate students and research mathematicians interested in relations between analysis and differential geometry.

Table of Contents

I. D. Berg and I. G. Nikolaev -- On an extremal property of quadrilaterals in an Aleksandrov space of curvature \leq K
V. I. Burenkov, H. V. Guliyev, and V. S. Guliyev -- On boundedness of the fractional maximal operator from complementary Morrey-type spaces to Morrey-type spaces
V. N. Dubinin and D. B. Karp -- Generalized condensers and distortion theorems for conformal mappings of planar domains
M. L. Goldman -- Rearrangement invariant envelopes of generalized Besov, Sobolev, and Calderon spaces
T. Iwaniec -- Null Lagrangians, the art of integration by parts
M. Karmanova -- Geometric measure theory formulas on rectifiable metric spaces
A. P. Kopylov -- Stability and regularity of solutions to elliptic systems of partial differential equations
V. M. Miklyukov -- Removable singularities of differential forms and A-solutions
H. Murakami -- Various generalizations of the volume conjecture
P. Pedregal -- Gradient Young measures and applications to optimal design
H. M. Riemann -- Wavelets for the cochlea
Y. G. Reshetnyak -- Sobolev-type classes of mappings with values in metric spaces
L. Szekelyhidi, Jr. -- Counterexamples to elliptic regularity and convex integration
S. K. Vodopyanov -- Geometry of Carnot-Caratheodory spaces and differentiability of mappings
S. K. Vodopyanov -- Foundations of the theory of mappings with bounded distortion on Carnot groups