Differential Topology, Foliations, and Group Actions

Differential Topology, Foliations, and Group Actions

Author: Paul A. Schweitzer

Publisher: American Mathematical Soc.

Published: 1994

Total Pages: 306

ISBN-13: 0821851705

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This volume contains the proceedings of the Workshop on Topology held at the Pontificia Universidade Catolica in Rio de Janeiro in January 1992. Bringing together about one hundred mathematicians from Brazil and around the world, the workshop covered a variety of topics in differential and algebraic topology, including group actions, foliations, low-dimensional topology, and connections to differential geometry. The main concentration was on foliation theory, but there was a lively exchange on other current topics in topology. The volume contains an excellent list of open problems in foliation research, prepared with the participation of some of the top world experts in this area. Also presented here are two surveys on group actions---finite group actions and rigidity theory for Anosov actions---as well as an elementary survey of Thurston's geometric topology in dimensions 2 and 3 that would be accessible to advanced undergraduates and graduate students.


Waveguide Junction Circulators

Waveguide Junction Circulators

Author: Joseph Helszajn

Publisher: John Wiley & Sons

Published: 1998-11-09

Total Pages: 563

ISBN-13: 0471982520

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Waveguide Junction Circulators brings together for the first time all the design aspects of this class of device. In a typical application the circulator allows a single antenna to be used for both transmission and reception. Together with semiconductor, passive and electronic devices, the circulator constitutes an essential building block in modern radar, satellite and telecommunication equipment. Features include: * Examination of the properties and adjustments of the 3-port junction circulator and focus on the gyromagnetic resonator * Description of the design of practical classic circulator arrangements * Discussion of aspects of filter theory in the design of the classic 3-port junction circulator * Consideration of practical concerns such as insertion loss and commercial specifications Written by a leading academic authority and experienced industrial consultant, Waveguide Junction Circulators is a vital information source for designers working in microwave engineering. This valuable guide provides the academic researcher with a firm foundation in the theoretical aspects of this class of device whilst offering the industrial engineer an experimental platform for commercial design.


A Dictionary of Linguistics and Phonetics

A Dictionary of Linguistics and Phonetics

Author: David Crystal

Publisher: John Wiley & Sons

Published: 2008-06-23

Total Pages: 565

ISBN-13: 1405152974

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David Crystal's A Dictionary of Linguistics and Phonetics has long been the standard single-volume reference for its field. Now available in its sixth edition, it has been revised and updated to reflect the latest terms in the field. Includes in excess of 5,100 terms, grouped into over 3,000 entries Coverage reflects recommendations by a team of experts in phonetics, phonology, syntax, semantics, sociolinguistics and psycholinguistics, making it exceptionally comprehensive Incorporates new ideas stemming from the minimalist program Contains a separate table of abbreviations and table of symbols, along with an updated International Phonetic Alphabet Updates entries to reflect the way established terms are now perceived in light of changes in the field, providing a unique insight into the historical development of linguistics Remains the standard single-volume reference for the field of linguistics and phonetics.


Critical Junctures and Historical Legacies

Critical Junctures and Historical Legacies

Author: David Collier

Publisher: Rowman & Littlefield

Published: 2022-02-28

Total Pages: 497

ISBN-13: 153816616X

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Over the past 50 years, scholars across the social sciences have employed critical juncture analysis to understand how social orders are created, become entrenched, and change. In this book, leading scholars from several disciplines offer the first coordinated effort to define this field of research, assess its theoretical and methodological foundations, and use a critical assessment of current practices as a basis for guiding its future. Contributors include stars in this field who have written some of the classic works on critical junctures, as well as the rising stars of the next generation who will continue to shape historical comparative analysis for years to come. Critical Junctures and Historical Legacies will be an indispensable resource for social science research methods scholars and students.


Natural Language Processing – IJCNLP 2004

Natural Language Processing – IJCNLP 2004

Author: Keh-Yih Su

Publisher: Springer

Published: 2005-01-25

Total Pages: 827

ISBN-13: 3540302115

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This book constitutes the thoroughly refereed post-proceedings of the First International Joint Conference on Natural Language Processing, IJCNLP 2004, held in Hainan Island, China in March 2004. The 84 revised full papers presented in this volume were carefully selected during two rounds of reviewing and improvement from 211 papers submitted. The papers are organized in topical sections on dialogue and discourse; FSA and parsing algorithms; information extractions and question answering; information retrieval; lexical semantics, ontologies, and linguistic resources; machine translation and multilinguality; NLP software and applications, semantic disambiguities; statistical models and machine learning; taggers, chunkers, and shallow parsers; text and sentence generation; text mining; theories and formalisms for morphology, syntax, and semantics; word segmentation; NLP in mobile information retrieval and user interfaces; and text mining in bioinformatics.