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This book examines interactions of polyhedral discrete geometry and algebra. What makes this book different from others is the presentation of several central results in all three areas of the exposition - from discrete geometry, to commutative algebra, and K-theory. The only prerequisite for the reader is a background in algebra. The basics of polyhedral geometry have been included as background material in Chapter 1.
The text will be of interest to graduate students and mathematicians. Included are numerous exercises, historical background, and notes throughout the chapters.
This book treats the interaction between discrete convex geometry, commutative ring theory, algebraic K-theory, and algebraic geometry. The basic mathematical objects are lattice polytopes, rational cones, affine monoids, the algebras derived from them, and toric varieties. The book discusses several properties and invariants of these objects, such as efficient generation, unimodular triangulations and covers, basic theory of monoid rings, isomorphism problems and automorphism groups, homological properties and enumerative combinatorics. The last part is an extensive treatment of the K-theory of monoid rings, with extensions to toric varieties and their intersection theory.
This monograph has been written with a view towards graduate students and researchers who want to study the cross-connections of algebra and discrete convex geometry. While the text has been written from an algebraist's view point, also specialists in lattice polytopes and related objects will find an up-to-date discussion of affine monoids and their combinatorial structure. Though the authors do not explicitly formulate algorithms, the book takes a constructive approach wherever possible.
Winfried Bruns is Professor of Mathematics at Universität Osnabrück.
Joseph Gubeladze is Professor of Mathematics at San Francisco State University.
The text will be of interest to graduate students and mathematicians. Included are numerous exercises, historical background, and notes throughout the chapters.
This book treats the interaction between discrete convex geometry, commutative ring theory, algebraic K-theory, and algebraic geometry. The basic mathematical objects are lattice polytopes, rational cones, affine monoids, the algebras derived from them, and toric varieties. The book discusses several properties and invariants of these objects, such as efficient generation, unimodular triangulations and covers, basic theory of monoid rings, isomorphism problems and automorphism groups, homological properties and enumerative combinatorics. The last part is an extensive treatment of the K-theory of monoid rings, with extensions to toric varieties and their intersection theory.
This monograph has been written with a view towards graduate students and researchers who want to study the cross-connections of algebra and discrete convex geometry. While the text has been written from an algebraist's view point, also specialists in lattice polytopes and related objects will find an up-to-date discussion of affine monoids and their combinatorial structure. Though the authors do not explicitly formulate algorithms, the book takes a constructive approach wherever possible.
Winfried Bruns is Professor of Mathematics at Universität Osnabrück.
Joseph Gubeladze is Professor of Mathematics at San Francisco State University.
From the reviews: "The book deals with the convex geometry of the polyhedral cones CM and related topics ... . With an extensive list of references together with historical notes at the end of each chapter, this book will serve as a welcome comprehensive monograph for research on these rich and fascinating subjects." (T. Oda, Mathematical Reviews, Issue 2010 d) "Interactions between convex geometry, ring theory, K-theory, combinatorial geometry, toric geometry, combinatorics in commutative algebra, which are presented in this book together with ... central results in each of the above fields. ... All the chapters contain many useful exercises ... . a good part of the book is not covered by any other book and so especially people from commutative algebra should have it." (Dorin-Mihail Popescu, Zentralblatt MATH, Vol. 1168, 2009) "Polytopes, Rings, and K-Theory weighs in at over 400 pages and ten chapters split into three main parts, culminating in the aforementioned K-theory in the given context. ... There are exercises galore in the book ... . All in all, Polytopes, Rings, and K-Theory is an accessible and well-written book on an interesting and important subject ... . It should be quite a success." (Michael Berg, The Mathematical Association of America, December, 2009)