Noncommutative geometry is a new field that is among the great challenges of present-day mathematics. Its methods allow one to treat noncommutative algebras - such as algebras of pseudodifferential operators, group algebras, or algebras arising from quantum field theory - on the same footing as commutative algebras, that is, as spaces. Applications range over many fields of mathematics and mathematical physics. This volume contains the proceedings of the workshop on "Cyclic Cohomology and Noncommutative Geometry" held at the Fields Institute in June 1995.
This volume represents the proceedings of the Noncommutative Geometry Workshop that was held as part of the thematic program on operator algebras at the Fields Institute in May 2008. Pioneered by Alain Connes starting in the late 1970s, noncommutative geometry was originally inspired by global analysis, topology, operator algebras, and quantum physics. Its main applications were to settle some long-standing conjectures, such as the Novikov conjecture and the Baum-Connes conjecture. Next came the impact of spectral geometry and the way the spectrum of a geometric operator, like the Laplacian, holds information about the geometry and topology of a manifold, as in the celebrated Weyl law. This has now been vastly generalized through Connes' notion of spectral triples. Finally, recent years have witnessed the impact of number theory, algebraic geometry and the theory of motives, and quantum field theory on noncommutative geometry. Almost all of these aspects are touched upon with new results in the papers of this volume. This book is intended for graduate students and researchers in both mathematics and theoretical physics who are interested in noncommutative geometry and its applications.
Basic Noncommutative Geometry provides an introduction to noncommutative geometry and some of its applications. The book can be used either as a textbook for a graduate course on the subject or for self-study. It will be useful for graduate students and researchers in mathematics and theoretical physics and all those who are interested in gaining an understanding of the subject. One feature of this book is the wealth of examples and exercises that help the reader to navigate through the subject. While background material is provided in the text and in several appendices, some familiarity with basic notions of functional analysis, algebraic topology, differential geometry and homological algebra at a first year graduate level is helpful. Developed by Alain Connes since the late 1970s, noncommutative geometry has found many applications to long-standing conjectures in topology and geometry and has recently made headways in theoretical physics and number theory. The book starts with a detailed description of some of the most pertinent algebra-geometry correspondences by casting geometric notions in algebraic terms, then proceeds in the second chapter to the idea of a noncommutative space and how it is constructed. The last two chapters deal with homological tools: cyclic cohomology and Connes-Chern characters in K-theory and K-homology, culminating in one commutative diagram expressing the equality of topological and analytic index in a noncommutative setting. Applications to integrality of noncommutative topological invariants are given as well."--Publisher's description.
This text provides an introduction to noncommutative geometry and some of its applications. It can be used either as a textbook for a graduate course or for self-study. It will be useful for graduate students and researchers in mathematics and theoretical physics and all those who are interested in gaining an understanding of the subject. One feature of this book is the wealth of examples and exercises that help the reader to navigate through the subject. While background material is provided in the text and in several appendices, some familiarity with basic notions of functional analysis, algebraic topology, differential geometry and homological algebra at a first year graduate level is helpful. Developed by Alain Connes since the late 1970s, noncommutative geometry has found many applications to long-standing conjectures in topology and geometry and has recently made headways in theoretical physics and number theory. The book starts with a detailed description of some of the most pertinent algebra-geometry correspondences by casting geometric notions in algebraic terms, then proceeds in the second chapter to the idea of a noncommutative space and how it is constructed. The last two chapters deal with homological tools: cyclic cohomology and Connes-Chern characters in K-theory and K-homology, culminating in one commutative diagram expressing the equality of topological and analytic index in a noncommutative setting. Applications to integrality of noncommutative topological invariants are given as well. Two new sections have been added to this second edition: one concerns the Gauss-Bonnet theorem and the definition and computation of the scalar curvature of the curved noncommutative two torus, and the second is a brief introduction to Hopf cyclic cohomology. The bibliography has been extended and some new examples are presented.
Basic Noncommutative Geometry provides an introduction to noncommutative geometry and some of its applications. The book can be used either as a textbook for a graduate course on the subject or for self-study. It will be useful for graduate students and researchers in mathematics and theoretical physics and all those who are interested in gaining an understanding of the subject. One feature of this book is the wealth of examples and exercises that help the reader to navigate through the subject. While background material is provided in the text and in several appendices, some familiarity with basic notions of functional analysis, algebraic topology, differential geometry and homological algebra at a first year graduate level is helpful. Developed by Alain Connes since the late 1970s, noncommutative geometry has found many applications to long-standing conjectures in topology and geometry and has recently made headways in theoretical physics and number theory. The book starts with a detailed description of some of the most pertinent algebra-geometry correspondences by casting geometric notions in algebraic terms, then proceeds in the second chapter to the idea of a noncommutative space and how it is constructed. The last two chapters deal with homological tools: cyclic cohomology and Connes-Chern characters in K-theory and K-homology, culminating in one commutative diagram expressing the equality of topological and analytic index in a noncommutative setting. Applications to integrality of noncommutative topological invariants are given as well."--Publisher's description.
This volume represents the proceedings of the Noncommutative Geometry Workshop that was held as part of the thematic program on operator algebras at the Fields Institute in May 2008. Pioneered by Alain Connes starting in the late 1970s, noncommutative geometry was originally inspired by global analysis, topology, operator algebras, and quantum physics. Its main applications were to settle some long-standing conjectures, such as the Novikov conjecture and the Baum-Connes conjecture. Next came the impact of spectral geometry and the way the spectrum of a geometric operator, like the Laplacian, holds information about the geometry and topology of a manifold, as in the celebrated Weyl law. This has now been vastly generalized through Connes' notion of spectral triples. Finally, recent years have witnessed the impact of number theory, algebraic geometry and the theory of motives, and quantum field theory on noncommutative geometry. Almost all of these aspects are touched upon with new results in the papers of this volume. This book is intended for graduate students and researchers in both mathematics and theoretical physics who are interested in noncommutative geometry and its applications.
This is the first existing volume that collects lectures on this important and fast developing subject in mathematics. The lectures are given by leading experts in the field and the range of topics is kept as broad as possible by including both the algebraic and the differential aspects of noncommutative geometry as well as recent applications to theoretical physics and number theory.
The Iran National Front and the Struggle for Democracy: 1949–Present explores the activities of the Iran National Front (INF). The INF is a coalition of parties, groups, and individuals and Iran’s oldest and main pro-democracy political party. This book presents a political history of the INF from 1949 to the present day. It discusses the current platform of the INF, its leadership, policies, strategies, as well as criticisms and weaknesses. The volume draws on a rich range of primary sources, INF documents, and interviews, including translated transcripts with the top leader of the INF. As it is one of the major political parties opposing the current regime in Iran, the book also examines the current situation in the country. It provides an analysis of the nature of the political systems under the Shah and the Islamic Republic.
Mass Protests in Iran: From Resistance to Overthrow explores the various waves of protests in Iran over the past 44 years, surveying their causes, consequences, and outcomes. The author argues that the regime and its support base of fundamentalist groups constitute a minority in Iran and lack legitimacy, and thus the regime uses repression and violence to secure its rule. The result is a pre-revolutionary situation and a shifting political landscape of overthrows, constant mass protests and mass repression. Kazemzadeh’s analysis highlights the factors that would assist the fundamentalist regime in succeeding in suppressing these protests, and the factors that would assist the Iranian people in defeating the fundamentalist regime. Written in an accessible style, this timely book offers a much-needed contribution to the literature on Iranian politics. It will be of interest to students and scholars, as well as policy makers, interested in Middle Eastern studies, social movements, protest movements, political science and sociology.
This book analyzes both domestic and international factors that have influenced Iran’s foreign policy since 1979. It looks not only at the perspectives of the ruling elite, but also of civil society and opposition groups. Furthermore, it also analyzes the interactions among Iran’s policies and those of regional and global powers. Since the 1979 revolution, Iran’s foreign policy has appeared both threatening and puzzling. Some have described it as ideological, whereby the regime has been attempting to export its Islamist rule to neighbouring countries and challenging the international order. Others consider Iran’s foreign policy to be primarily pragmatic, concerned with survival of the regime and expanding its power not unlike other powers in the system. This book attempts to go deeper than most conventional analyses. It demystifies Iran’s foreign policy by describing, in great detail, foreign policy decision making in Iran. Iran is not a one-man dictatorship. Rather, it is rule by an oligarchy of Shia fundamentalists. The regime’s ideology has not been cohesive, nor has it remained consistent in the past 41 years, nor all members of the ruling oligarchy have articulated an identical version of it. The book describes foreign policies of various factions and their leading figures as well as analysing their evolutions since 1979. It explains how various intra-elite configurations of power have influenced the regime’s foreign policy regarding the nuclear weapons program and the relations with the United States. Iran’s Foreign Policy: Elite Factionalism, Ideology, the Nuclear Weapons Program, and the United States adds fresh and critical perspectives on scholarly and policy debates on Iran’s foreign policy. The chapters in this book were originally published in the following journals: Comparative Strategy, American Foreign Policy Interests and the Terrorism Law Report.
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