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54 produkter
54 produkter
Del 132 - Encyclopedia of Mathematics and its Applications
Relational Mathematics
Inbunden, Engelska, 2010
1 389 kr
Skickas inom 7-10 vardagar
Relational mathematics is to operations research and informatics what numerical mathematics is to engineering: it is intended to help modelling, reasoning, and computing. Its applications are therefore diverse, ranging from psychology, linguistics, decision aid, and ranking to machine learning and spatial reasoning. Although many developments have been made in recent years, they have rarely been shared amongst this broad community of researchers. This comprehensive 2010 overview begins with an easy introduction to the topic, assuming a minimum of prerequisites; but it is nevertheless theoretically sound and up to date. It is suitable for applied scientists, explaining all the necessary mathematics from scratch using a multitude of visualised examples, via matrices and graphs. It ends with tangible results on the research level. The author illustrates the theory and demonstrates practical tasks in operations research, social sciences and the humanities.
Del 243 - Lecture Notes in Control and Information Sciences
Progress in System and Robot Analysis and Control Design
Häftad, Engelska, 1999
542 kr
Skickas inom 10-15 vardagar
The fields of control and robotics are now at an advanced level of maturity both in theory and practice. Numerous systems are used effectively in industrial production and other sectors of modern life. This volume contains a well-balanced collection of over fifty papers focusing on analysis and design problems. The current trends and advances in the fields are reflected. Topics covered include: system analysis, identification and stability optimal, adaptive, robust and QFT controller design design and application of driving simulators industrial robots and telemanipulators mobile, service, and legged robots virtual reality in robotics The book brings together important original results derived from a variety of academic and engineering environments. Also, it serves as a timely reference volume for the researcher and practitioner.
Del 2378 - Lecture Notes in Mathematics
Fast Computation of Volume Potentials by Approximate Approximations
Häftad, Engelska, 2025
810 kr
Skickas inom 5-8 vardagar
This book introduces a new fast high-order method for approximating volume potentials and other integral operators with singular kernel. These operators arise naturally in many fields, including physics, chemistry, biology, and financial mathematics. A major impediment to solving real world problems is the so-called curse of dimensionality, where the cubature of these operators requires a computational complexity that grows exponentially in the physical dimension. The development of separated representations has overcome this curse, enabling the treatment of higher-dimensional numerical problems. The method of approximate approximations discussed here provides high-order semi-analytic cubature formulas for many important integral operators of mathematical physics. By using products of Gaussians and special polynomials as basis functions, the action of the integral operators can be written as one-dimensional integrals with a separable integrand. The approximation of a separated representation of the density combined with a suitable quadrature of the one-dimensional integrals leads to a separated approximation of the integral operator. This method is also effective in high-dimensional cases. The book is intended for graduate students and researchers interested in applied approximation theory and numerical methods for solving problems of mathematical physics.
E-bok
Engelska, 20251 026 kr
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This book introduces a new fast high-order method for approximating volume potentials and other integral operators with singular kernel. These operators arise naturally in many fields, including physics, chemistry, biology, and financial mathematics. A major impediment to solving real world problems is the so-called curse of dimensionality, where the cubature of these operators requires a computational complexity that grows exponentially in the physical dimension. The development of separated representations has overcome this curse, enabling the treatment of higher-dimensional numerical problems. The method of approximate approximations discussed here provides high-order semi-analytic cubature formulas for many important integral operators of mathematical physics. By using products of Gaussians and special polynomials as basis functions, the action of the integral operators can be written as one-dimensional integrals with a separable integrand. The approximation of a separated representation of the density combined with a suitable quadrature of the one-dimensional integrals leads to a separated approximation of the integral operator. This method is also effective in high-dimensional cases. The book is intended for graduate students and researchers interested in applied approximation theory and numerical methods for solving problems of mathematical physics.
Del 17 - Schriftenreihe Des Zentralinstituts Für Mathematik Und Mechanik Bei der Akademie der Wissenschaften
Beiträge Zur Turbulenzforschung Und Messtechnik
Inbunden, Tyska, 1973
1 948 kr
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Häftad, Engelska, 1997
559 kr
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The calculus of relations has been an important component of the development of logic and algebra since the middle of the nineteenth century, when Augustus De Morgan observed that since a horse is an animal we should be able to infer that the head of a horse is the head of an animal. For this, Aristotelian syllogistic does not suffice: We require relational reasoning. George Boole, in his Mathematical Analysis of Logic of 1847, initiated the treatment of logic as part of mathematics, specifically as part of algebra. Quite the opposite conviction was put forward early this century by Bertrand Russell and Alfred North Whitehead in their Principia Mathematica (1910 - 1913): that mathematics was essentially grounded in logic. Logic thus developed in two streams. On the one hand algebraic logic, in which the calculus of relations played a particularly prominent part, was taken up from Boole by Charles Sanders Peirce, who wished to do for the "calculus of relatives" what Boole had done for the calculus of sets. Peirce's work was in turn taken up by Schroder in his Algebra und Logik der Relative of 1895 (the third part of a massive work on the algebra of logic). Schroder's work, however, lay dormant for more than 40 years, until revived by Alfred Tarski in his seminal paper "On the calculus of binary relations" of 1941 (actually his presidential address to the Association for Symbolic Logic).
Häftad, Engelska, 2014
559 kr
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This book investigates the spatial distribution of potential temperature-driven malaria transmissions, using the basic reproduction rate (R0) to model the reproduction of the malaria pathogen Plasmodium vivax. The authors mapped areas at risk of an outbreak of tertian malaria in the federal state of Lower Saxony (pre-study) and for whole Germany (main-study) by means of geostatistics for past (1947-2007) and future periods. Projections based on predicted monthly mean air temperature data derived from the IPCC and regionally discriminated by two regional climate models (REMO, WettReg) for the countrywide study.
E-bok
PDF, Engelska, 2013732 kr
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This book investigates the spatial distribution of potential temperature-driven malaria transmissions, using the basic reproduction rate (R0) to model the reproduction of the malaria pathogen Plasmodium vivax. The authors mapped areas at risk of an outbreak of tertian malaria in the federal state of Lower Saxony (pre-study) and for whole Germany (main-study) by means of geostatistics for past (1947-2007) and future periods. Projections based on predicted monthly mean air temperature data derived from the IPCC and regionally discriminated by two regional climate models (REMO, WettReg) for the countrywide study.
Häftad, Engelska, 2014
542 kr
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The investigations refer to the development of plant phenology since the 1960s in Germany. Spatiotemporal trends were assessed by means of regression kriging. It could be shown that there already is a distinct shift of phenological onset towards the beginning of the year of up to two weeks. In future, a shift of up to one month was calculated till 2080. Moreover, a prolongation of the vegetation period of up to three weeks was found. The findings are relevant for the development of mitigation measures to prevent from environmental, agricultural and economic issues due to climate change.
E-bok
PDF, Engelska, 2014710 kr
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The investigations refer to the development of plant phenology since the 1960s in Germany. Spatiotemporal trends were assessed by means of regression kriging. It could be shown that there already is a distinct shift of phenological onset towards the beginning of the year of up to two weeks. In future, a shift of up to one month was calculated till 2080. Moreover, a prolongation of the vegetation period of up to three weeks was found. The findings are relevant for the development of mitigation measures to prevent from environmental, agricultural and economic issues due to climate change.
Del 2208 - Lecture Notes in Mathematics
Relational Topology
Häftad, Engelska, 2018
542 kr
Skickas inom 10-15 vardagar
This book introduces and develops new algebraic methods to work with relations, often conceived as Boolean matrices, and applies them to topology. Although these objects mirror the matrices that appear throughout mathematics, numerics, statistics, engineering, and elsewhere, the methods used to work with them are much less well known. In addition to their purely topological applications, the volume also details how the techniques may be successfully applied to spatial reasoning and to logics of computer science.Topologists will find several familiar concepts presented in a concise and algebraically manipulable form which is far more condensed than usual, but visualized via represented relations and thus readily graspable. This approach also offers the possibility of handling topological problems using proof assistants.
E-bok
Engelska, 2018710 kr
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This book introduces and develops new algebraic methods to work with relations, often conceived as Boolean matrices, and applies them to topology. Although these objects mirror the matrices that appear throughout mathematics, numerics, statistics, engineering, and elsewhere, the methods used to work with them are much less well known. In addition to their purely topological applications, the volume also details how the techniques may be successfully applied to spatial reasoning and to logics of computer science.
Topologists will find several familiar concepts presented in a concise and algebraically manipulable form which is far more condensed than usual, but visualized via represented relations and thus readily graspable. This approach also offers the possibility of handling topological problems using proof assistants.
147 kr
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Hypnosystemische Therapie, Beratung, Supervision, Coaching - interessante einführende Artikel und Erfahrungsberichte von Experten zum Thema Konzepte und Methoden aus dem Bereich hypnotherapeutischer und systemischer Methoden. Ein buntes Menü an Einsatzmöglichkeiten, einmal quer durch die Küche. Als Hypno - Systemisch - kulinarisches Potpourrie angelegt, stellt diese Sammlung methodenorientierter Fachartikel ein Buffett an Kostproben und Köstlichkeiten zur Verfügung, welches Sinn-en-voll einladend vielfältige Wege therapeutischer „Zubereitung“ und kathartischer Zielsetzung präsentiert, vorstellt und auf diese Weise zur Verwendung mitunter auch unüblicher „Zutaten“ verlocken will. Die Mit-Wirkung so unterschiedlicher Therapeut*innenpersönlichkeiten ermöglicht eine bunte Vielfalt hypnotherapeutisch – methodischer Reflexion und Neu – Vorstellung. Bekanntes neu arrangiert inklusive.
Del 14 - Fachberichte Messen - Steuern - Regeln
Fortschritte in der Meß- und Automatisierungstechnik durch Informationstechnik
INTERKAMA-Kongreß 1986
Häftad, Tyska, 1986
557 kr
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Häftad, Engelska, 1987
559 kr
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Graph-theoretic concepts are developed by computer scientists in order to model algorithms, nets, rewriting systems, distributed systems, parallelism, geometric and layout concepts. Their complexity is studied under various randomness assumptions. This volume contains contributions to the twelfth of a series of annual workshops designed to bring together researchers using graph-theoretic methods. Its purpose is to broadcast emerging new developments from and to a diversity of application fields. The topics covered include: Graph Grammars, Graph Manipulation, Nets, Complexity Issues, Algorithmic and Network Considerations, Outerplanar Graphs, Graph Isomorphism, Parallelism and Distributed Systems, Graphs and Geometry, Randomness Considerations, Applications in Chemistry, Specific Algorithms. N
Häftad, Engelska, 2003
559 kr
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Relational structures abound in our daily environment: relational databases, data mining, scaling procedures, preference relations, etc. As the documentation of scientific results achieved within the European COST Action 274, TARSKI, this book advances the understanding of relational structures and the use of relational methods in various application fields.The 12 revised full papers were carefully reviewed and selected for presentations. The papers are devoted to mechanization of relational reasoning, relational scaling and preferences, and algebraic and logical foundations of real world relations.
E-bok
PDF, Engelska, 2004732 kr
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Relational structures abound in our daily environment: relational databases, data mining, scaling procedures, preference relations, etc. As the documentation of scientific results achieved within the European COST Action 274, TARSKI, this book advances the understanding of relational structures and the use of relational methods in various application fields.
The 12 revised full papers were carefully reviewed and selected for presentations. The papers are devoted to mechanization of relational reasoning, relational scaling and preferences, and algebraic and logical foundations of real world relations.
Häftad, Tyska, 1988
557 kr
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Dieses Buch gibt eine neuartige systematische Darstellung der Diskreten Mathematik; sie orientiert sich an Methoden der Relationenalgebra. Ähnlich wie man es sonst nur für die weit entwickelte Analysis im kontinuierlichen Fall und die Matrizenrechnung gewohnt ist, stellt dieses Buch auch für die Behandlung diskreter Probleme geeignete Techniken und Hilfsmittel sowie eine einheitliche Theorie bereit. Die einzelnen Kapitel beginnen jeweils mit anschaulichen und motivierenden Beispielen und behandeln anschließend den Stoff in mathematischer Strenge. Es folgen jeweils praktische Anwendungen. Diese entstammen der Semantik der Programmierung, der Programmverifikation, dem Datenbankbereich, der Spieltheorie oder der Theorie der Zuordnungen und Überdeckungen aus der Graphentheorie; sie reichen aber auch bis zu rein mathematischen "Anwendungen" wie der transfiniten Induktion. Im Anhang ist dem Buch eine Einführung in die Boolesche Algebra und in die Axiomatik der Relationenalgebra beigegeben, sowie ein Abriß der Fixpunkt- und Antimorphismen-Theorie.
Häftad, Engelska, 1991
542 kr
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This volume is a collection of 22 papers presented at the International Workshop on Information Processing in Autonomous Mobile Robots, held in Munich (Germany) in March 1991. Autonomous mobile robot technologies are generating significant interest because of their potential capabilities for future applications on the plant floor as weil as in the service industry. Autonomous robots may navigate around factories and laboratories, hospitals, office-buildings, airports or sirnilar public and sernipublic places. They may deliver equipment, coilect garbage and perform other such tasks. One of the major challenges for the field of autonomous mobile robot research is to develop robust and real-time systerns for perception and understanding of complicated real environments as weil as for intelligent decision-making with respect to proper actions. This Workshop was set up to stimulate discussion and the exchangement of new ideas on various aspects of autonomous mobile robot methodologies and applications. The main focal points of the Workshop program were sensing and perception, navigation and control, knowledge bases and computer architechtures as weil as various applications. The papers are prepared by leading experts in theses areas from Europe, Japan, the United States and by researchers involved in the interdisciplinary research project on "Information Processing in Autonomous Mobile Robots (Sonderforschungsbereich 331)" at the Technische Universität München.
Häftad, Engelska, 1992
559 kr
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This volume contains contributions to the 17th Internationalworkshop on Graph-Theoretic Concepts in Computer Science(WG '91)held in Southern Bavaria in June 1991. These annualworkshops are designed to bring together researchers usinggraph-theoretic methods to discuss new developments relatingto or emerging from a diversity of application fields.The topics covered in this volume include: tree-relatedproblems, graph grammarsand rewriting, complexity,computational geometry, parallel algorithms, vertexorderings, path-oriented algorithms, applications to VLSI,and disjoint cycle problems.
Häftad, Engelska, 1995
542 kr
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This volume presents the proceedings of the 20th International Workshop on Graph-Theoretic Concepts in Computer Science (WG '94), held in Herrsching, Germany in June 1994.The volume contains 32 thoroughly revised papers selected from 66 submissions and provides an up-to-date snapshot of the research performed in the field. The topics addressed are graph grammars, treewidth, special graph classes, algorithms on graphs, broadcasting and architecture, planar graphs and related problems, and special graph problems.
Häftad, Tyska, 1996
557 kr
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Das 12. Fachgesprach Autonome Mobile Systeme (AMS '96) findet am 14. und 15. Okt. 1996 an der Technischen Universitat Munchen statt. Die Organisation liegt in den Handen des Sonderforschungsbereiches "Informationsverarbeitung in autonomen, mobilen Handhabungs- systemen" (SFB 331). Mit 26 Fachbeitragen in zwei parallelen Sitzungsreihen, zwei Plenar- vortragen und einer offenen Podiumsdiskussion, die Trends in Anwendung und Forschung der AMS beleuchtet, bietet das 12. Fachgesprach wahrend dreier Halbtage ein aktuelles Vor- trags- und Diskussionsprogramm. Neben Fragen der Sensorik, Videosensorik, Lokalisation, Navigation, der Steuerung, Planung, Koordination und Kooperation werden auch neuartige Anwendungen und industrielle Komponenten vorgestellt und diskutiert. Eine breitere Beach- tung im Vergleich zu vorausgegangenen Fachgesprachen finden Anwendungen autonomer Fahrzeuge im freien Gelande. So wird in diesem Jahre erstrnals der Einsatz in der pflanzli- chen Produktion und der Schiffsfuhrung erortert. Dies gilt in gleicher Weise fur GPS (Global Positioning System)-Komponenten und deren Anwendung.Dieses Fachgesprach versteht sich, wie auch seine Vorganger, primar als eine Plattform des kritischen Wissens-und Informationsaustausches deutschsprachiger Forschergruppen im Be- reich autonomer mobiler Roboter und Systeme. Dennoch oder gerade deshalb ist es befruch- tend, auch internationale Gaste in das Fachgesprach eingebunden zu haben. Eine Bereiche- rung bilden auch verschiedene industrielle und institutionelle Ausstellungsobjekte, die im Foyer vor den Tagungsraumen einen angemessenen Platz finden und sicher ein lebhaftes In- teresse auf sich ziehen werden. Als eine Besonderheit dieses 12.
Häftad, Tyska, 1999
574 kr
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Der Band Autonome Mobile Systeme 1999 gibt einen Uberblick uber aktuelle Forschungsergebnisse auf dem Gebiet autonomer mobiler und/oder robotischer Systeme. Dabei werden Fragestellungen zu Sensorsystemen, Umgebungsmodellierung, Lokalisierung und Navigation von mobilen Robotern inkl. Laufrobotern sowie der Planung und Ausfuhrung von Manipulationsaufgaben behandelt.
Häftad, Engelska, 2006
559 kr
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This book is a follow-up of LNCS volume 2929 with the same title, and presents the major results of COST action 274 (2002-2005), TARSKI: Theory and - plications of Relational Structures as Knowledge Instruments. Relational structures abound in the daily environment: relational databases, data-mining, scaling procedures, preference relations, etc. Reasoning about, and with, relations has a long-standing European tradition, which may be divided into three broad areas: 1. Algebraic Logic: algebras of relations, relational semantics, and algebras and logics derived from information systems. 2. Computational Aspects of Automated Relational Reasoning: decidability and complexity of algorithms, network satisfaction. 3. Applications: social choice, AI, linguistics, psychology, economics, etc. The main objective of the ?rst TARSKI book (LNCS 2929) was to advance the understanding of relational structures and the use of relational methods in applicable object domains. There were the following sub-objectives: 1. Tostudythesemanticalandsyntacticalaspectsofrelationalstructuresarising from ‘real world’ situations 2. To investigateautomatedinference for relationalsystems, and, wherepossible or feasible, develop deductive systems which can be implemented into industrial applications, such as diagnostic systems 3. To develop non-invasive scaling methods for predicting relational data 4. To make software for dealing with relational systems commonly available We are con?dent that the present book will further the understanding of int- disciplinary issues involving relational reasoning. This book consists of papers which give a clear and self-contained overview of the results obtained by the TARSKI action, typically obtained by di?erent persons from di?erent work - eas.
E-bok
PDF, Engelska, 2007732 kr
Läs direkt efter köp
This book is a follow-up of LNCS volume 2929 with the same title, and presents the major results of COST action 274 (2002-2005), TARSKI: Theory and - plications of Relational Structures as Knowledge Instruments. Relational structures abound in the daily environment: relational databases, data-mining, scaling procedures, preference relations, etc. Reasoning about, and with, relations has a long-standing European tradition, which may be divided into three broad areas: 1. Algebraic Logic: algebras of relations, relational semantics, and algebras and logics derived from information systems. 2. Computational Aspects of Automated Relational Reasoning: decidability and complexity of algorithms, network satisfaction. 3. Applications: social choice, AI, linguistics, psychology, economics, etc. The main objective of the ?rst TARSKI book (LNCS 2929) was to advance the understanding of relational structures and the use of relational methods in applicable object domains. There were the following sub-objectives: 1. Tostudythesemanticalandsyntacticalaspectsofrelationalstructuresarising from ‘real world’ situations 2. To investigateautomatedinference for relationalsystems, and, wherepossible or feasible, develop deductive systems which can be implemented into industrial applications, such as diagnostic systems 3. To develop non-invasive scaling methods for predicting relational data 4. To make software for dealing with relational systems commonly available We are con?dent that the present book will further the understanding of int- disciplinary issues involving relational reasoning. This book consists of papers which give a clear and self-contained overview of the results obtained by the TARSKI action, typically obtained by di?erent persons from di?erent work - eas.
Inbunden, Tyska, 2012
1 208 kr
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Das Buch gibt einen Einblick in systemische Verknüpfungen, denen der Anbau von gentechnisch veränderten Pflanzen in Deutschland unterliegen würde. Es thematisiert Verknüpfungen, die sich zwischen ökologischen und sozialen Systemzusammenhängen herstellen lassen. Bisherige Betrachtungen widmeten sich dem Thema entweder aus ökologischer Perspektive oder thematisieren (agrar-)politische Zusammenhänge. Das Buch resultiert aus einem Forschungsprojekt, in welchem das BMBF die Erforschung sozialökologischer Wechselwirkungen gefördert hat.
E-bok
PDF, Tyska, 2012789 kr
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Das Buch gibt einen Einblick in systemische Verknüpfungen, denen der Anbau von gentechnisch veränderten Pflanzen in Deutschland unterliegen würde. Es thematisiert Verknüpfungen, die sich zwischen ökologischen und sozialen Systemzusammenhängen herstellen lassen. Bisherige Betrachtungen widmeten sich dem Thema entweder aus ökologischer Perspektive oder thematisieren (agrar-)politische Zusammenhänge. Das Buch resultiert aus einem Forschungsprojekt, in welchem das BMBF die Erforschung sozialökologischer Wechselwirkungen gefördert hat.
E-bok
PDF, Tyska, 2013602 kr
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E-bok
PDF, Tyska, 2013537 kr
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Aus den Besprechungen: "Dieses Werk mit betontem Lehrbuchcharakter ist für Studierende der verschiedensten ingenieurwissenschaftlichen Fachrichtungen geschrieben worden. Auf wissenschaftlicher Basis ermöglicht es, sich anschaulich und praxisorientiert in die Prinzipien und methodischen Grundlagen der Regelungstechnik einzuarbeiten...." #Messen und Prüfen#"...Die Abhandlung ist in jeder Beziehung voll gelungen. Nach Absicht des Autors hat sie betonten Lernbuchcharakter. Dem dienen auch 65 geschickt gewählte Beispiele mit guten Bildern, die zum praxisnahen Selbststudium animieren. Insofern kann das Buch allen Studenten der Ingenieurwissenschaften und darüber hinaus allen, die an der Regelungstechnik Interesse zeigen, sei es zur Einarbeitung oder zur Wiederholung, uneingeschränkt empfohlen werden." #Regelungstechnik#
E-bok
PDF, Engelska, 20121 413 kr
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Relational methods can be found at various places incomputer science, notably in data base theory, relationalsemantics of concurrency, relationaltype theory, analysisof rewriting systems, and modern programming languagedesign. In addition, they appear in algorithms analysis andin the bulk of discrete mathematics taught to computerscientists.This book is devoted to the background of these methods. Itexplains how to use relational and graph-theoretic methodssystematically in computer science.A powerful formal framework of relational algebra isdeveloped with respect to applications to a diverse range ofproblem areas. Results are first motivated by practicalexamples, often visualized by both Boolean 0-1-matrices andgraphs, and then derived algebraically.