The volume contains all papers presented at the Working Conference on Engineering for Human-Computer Interaction (EHCI'95), grouped into the topic areas Formal Methods, Tools, Multimedia, Architecture, CSCW, and Design. It includes transcripts of all discussions among the presenters and the conference participants. It further contains the results of several mini-workshops held during the conference on topics like the Human Context, How to make Formal Methods Useful, Rapid Implementation and Development, Usability Testing, CSCW Mini Scenarios.
These proceedings are from the Tenth International Conference on Representations of Algebras and Related Topics (ICRA X) held at The Fields Institute. In addition to the traditional ``instructional'' workshop preceding the conference, there were also workshops on ``Commutative Algebra, Algebraic Geometry and Representation Theory'', ``Finite Dimensional Algebras, Algebraic Groups and Lie Theory'', and ``Quantum Groups and Hall Algebras''. These workshops reflect the latest developments and the increasing interest in areas that are closely related to the representation theory of finite dimensional associative algebras. Although these workshops were organized separately, their topics are strongly interrelated. The workshop on Commutative Algebra, Algebraic Geometry and Representation Theory surveyed various recently established connections, such as those pertaining to the classification of vector bundles or Cohen-Macaulay modules over Noetherian rings, coherent sheaves on curves, or ideals in Weyl algebras. In addition, methods from algebraic geometry or commutative algebra relating to quiver representations and varieties of modules were presented. The workshop on Finite Dimensional Algebras, Algebraic Groups and Lie Theory surveyed developments in finite dimensional algebras and infinite dimensional Lie theory, especially as the two areas interact and may have future interactions. The workshop on Quantum Groups and Hall Algebras dealt with the different approaches of using the representation theory of quivers (and species) in order to construct quantum groups, working either over finite fields or over the complex numbers. In particular, these proceedings contain a quite detailed outline of the use of perverse sheaves in order to obtain canonical bases. The book is recommended for graduate students and researchers in algebra and geometry.
This book is concerned with the role played by modules of infinite length when dealing with problems in the representation theory of groups and algebras, but also in topology and geometry; it shows the intriguing interplay between finite and infinite length modules. The volume presents the invited lectures of a conference devoted to 'Infinite Length Modules', held at Bielefeld in September 1998, which brought together experts from quite different schools in order to survey surprising relations between algebra, topology and geometry. Some additional reports have been included in order to establish a unified picture. The collection of articles, written by well-known experts from all parts of the world, is conceived as a sort of handbook which provides an easy access to the present state of knowledge and its aim is to stimulate further development.
We welcome the publication of this volume, which discusses the diagnosis of bone tumours with particular reference to children and adolescents. As founder members of the International Skeletal Society we are delighted to learn that the book had its inception at one of the Society's meetings. It reflects, moreover, the combined presentation of radiological and pathological diagnostic information which has been such a feature of the meetings of the International Skeletal Society. We commend it to all readers with an interest in tumours of the skeleton. Hubert A. Sissons Ronald O. Murray Preface The diagnosis of primary bone tumors is often difficult. There are several reasons for this. As primary bone tumors are rare in childhood, practitioners in a number of pediatric subspecialties are not familiar with them. The clinical symptoms and signs are often elusive, the biochemical investigations usually normal and the radio graphic features often uncharacteristic. Even the pathologist, who is the final step in arriving at the proper diagnosis and who has all the available clinical, biochemical and radiographic data, may encounter difficulties. A good tissue sample is the basis for microscopic investigation. However, bone tumors often show an extreme variety of structures which confuse even experienced bone pathologists. Therefore, histo pathologic analysis must take into account all available clinical, biochemical and radiographic data. The close cooperation of the pathologist with clinicians and, especially, radiologists is of the utmost importance.
This study fills a large gap as most texts on Nazism in German society around 1933 concentrate on the country's western parts. This book deals with the problems caused by the constitutional monarchy, democracy, and dictatorship.
Transforming Capitalism addresses the challenges to shareholder capitalism. It explores: fair play in the market place;challenges on systemic, organizational and individual levels; the need to refocus our economic system around community and cooperation; the current challenges and transform capitalism.
I Introductory Articles.- 1 Classification Problems in the Representation Theory of Finite-Dimensional Algebras.- 2 Noncommutative Gröbner Bases, and Projective Resolutions.- 3 Construction of Finite Matrix Groups.- II Keynote Articles.- 4 Derived Tubularity: a Computational Approach.- 5 Problems in the Calculation of Group Cohomology.- 6 On a Tensor Category for the Exceptional Lie Groups.- 7 Non-Commutative Gröbner Bases and Anick's Resolution.- 8 A new Existence Proof of Janko's Simple Group J4.- 9 The Normalization: a new Algorithm, Implementation and Comparisons.- 10 A Computer Algebra Approach to sheaves over Weighted Projective Lines.- 11 Open Problems in the Theory of Kazhdan-Lusztig polynomials.- 12 Relative Trace Ideals and Cohen Macaulay Quotients.- 13 On Sims' Presentation for Lyons' Simple Group.- 14 A Presentation for the Lyons Simple Group.- 15 Reduction of Weakly Definite Unit Forms.- 16 Decision Problems in Finitely Presented Groups.- 17 Some Algorithms in Invariant Theory of Finite Groups.- 18 Coxeter Transformations associated with Finite Dimensional Algebras.- 19 The 2-Modular Decomposition Numbers of Co2.- 20 Bimodule and Matrix Problems.
Dieses Buch will dem Leser eine Einführung in wichtige Techniken und Methoden der heutigen reellen Algebra und Geometrie vermitteln. An Voraussetzungen werden dabei nur Grundkenntnisse der Algebra erwartet, so daß das Buch für Studenten mittlerer Semester geeignet ist.Das erste Kapitel enthält zunächst grundlegende Fakten über angeordnete Körper und ihre reellen Abschlüsse und behandelt dann verschiedene Methoden zur Bestimmung der Anzahl reeller Nullstellen von Polynomen. Das zweite Kapitel befaßt sich mit reellen Stellen und gipfelt in Artins Lösung des 17. Hilbertschen Problems. Kapitel III schließlich ist dem noch jungen Begriff des reellen Spektrums und seinen Anwendungen gewidmet."Neben dem 1987 erschienenen "Géometrie algébrique réelle" von J. Bochnak-M. Coste- M. Roy stellt die vorliegende Monographie das erste Lehrbuch auf diesem Gebiet dar... Damit liegt eine sehr empfehlenswerte Einführung...vor..." (H. Mitsch, Monatshefte für Mathematik 3/111, 1991)
This textbook is designed for a one-year graduate course in real algebraic geometry, with a particular focus on positivity and sums of squares of polynomials. The first half of the book features a thorough introduction to ordered fields and real closed fields, including the Tarski-Seidenberg projection theorem and transfer principle. Classical results such as Artin's solution to Hilbert's 17th problem and Hilbert's theorems on sums of squares of polynomials are presented in detail. Other features include careful introductions to the real spectrum and to the geometry of semialgebraic sets. The second part studies Archimedean positivstellensätze in great detail and in various settings, together with important applications. The techniques and results presented here are fundamental to contemporary approaches to polynomial optimization. Important results on sums of squares on projective varieties are covered as well. The last part highlights applications to semidefinite programming and polynomial optimization, including recent research on semidefinite representation of convex sets. Written by a leading expert and based on courses taught for several years, the book assumes familiarity with the basics of commutative algebra and algebraic varieties, as can be covered in a one-semester first course. Over 350 exercises, of all levels of difficulty, are included in the book.
In this book selected aerothermodynamic design problems in hypersonic vehicles are treated. Where applicable, it emphasizes the fact that outer surfaces of hypersonic vehicles primarily are radiation-cooled, an interdisciplinary topic with many implications.
SEW FAR SEW GOOD: THE COMPREHENSIVE SOURCEBOOK FOR HOME & PROFESSIONAL SEWERS, QUILTERS, BEADERS, NEEDLEWORKERS, WEAVERS, KNITTERS, & OTHER CREATIVE PERSONS, by Heather M. Clans is a mail order guide to products & services across North America that are available for fiber & fabric enthusiasts. With hundreds of companies cross referenced by thousands of products & services, SEW FAR SEW GOOD is the most comprehensive sourcebook available. In addition to useful resources, it also has over 200 fashion illustrations, a fashion & fiber glossary, & interesting fiber facts & tips to make working with fabrics & fiber more enjoyable. It includes articles on consumer education, & over 100 companies offer special discounts to those who purchase SEW FAR SEW GOOD. Readers have called it "a must have for multi-crafters, especially those who live in areas where stores are few.", "...more work than WAR & PEACE...destined to become an encyclopedia for artsy craftsy people!", & "...an essential resource for all needlecrafters." To order, contact: Oracle Publications, 1226 Carroll Avenue, Ames, IA 50010, (515) 233-6226, toll-free: (800) 428-1986, FAX: (515) 233-6744. Ask for distribution information.
Dieses Buch will dem Leser eine Einführung in wichtige Techniken und Methoden der heutigen reellen Algebra und Geometrie vermitteln. An Voraussetzungen werden dabei nur Grundkenntnisse der Algebra erwartet, so daß das Buch für Studenten mittlerer Semester geeignet ist.Das erste Kapitel enthält zunächst grundlegende Fakten über angeordnete Körper und ihre reellen Abschlüsse und behandelt dann verschiedene Methoden zur Bestimmung der Anzahl reeller Nullstellen von Polynomen. Das zweite Kapitel befaßt sich mit reellen Stellen und gipfelt in Artins Lösung des 17. Hilbertschen Problems. Kapitel III schließlich ist dem noch jungen Begriff des reellen Spektrums und seinen Anwendungen gewidmet."Neben dem 1987 erschienenen "Géometrie algébrique réelle" von J. Bochnak-M. Coste- M. Roy stellt die vorliegende Monographie das erste Lehrbuch auf diesem Gebiet dar... Damit liegt eine sehr empfehlenswerte Einführung...vor..." (H. Mitsch, Monatshefte für Mathematik 3/111, 1991)
The International Conference on Human-Computer Interaction EWHCI '93 was thethird conference in a series which started in 1991 in Moscow. Like its predecessors, it was occasioned by the long separation of workers in HCI from one another and the new opportunity to learn from one another and to start cooperations with each other. The conference was international,with papers and participants from 16 countries. This volume contains a selection of the best papers presented at the conference. The papers are grouped into parts on: foundations of HCI; techniques, tools and paradigms for interface design; information visualization; empiricalstudies; multimedia; hypertext; customizing interfaces; teaching and learning; applications.
This volume presents the proceedings of the Fourth East-West Conference on Human-Computer Interaction, EWHCI '94, held in St. Petersburg, Russia in August 1994. One of the main objectives of EWHCI is to foster professional and personal contacts between researchers in the former Soviet Union and researchers from the rest of the world. The volume contains revised versions of the 20 best papers selected from the 37 papers accepted for presentation at the conference and covers three basic themes: theoretical and empirical underpinnings of HCI, implemented systems, and the relationship of HCI to other fields. The papers are organized in sections on foundations of HCI, empirical studies and applications, environments, architectures, learning and teaching, and hypertext.
The volume contains all papers presented at the Working Conference on Engineering for Human-Computer Interaction (EHCI'95), grouped into the topic areas Formal Methods, Tools, Multimedia, Architecture, CSCW, and Design. It includes transcripts of all discussions among the presenters and the conference participants. It further contains the results of several mini-workshops held during the conference on topics like the Human Context, How to make Formal Methods Useful, Rapid Implementation and Development, Usability Testing, CSCW Mini Scenarios.
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