An Introduction to the Language of Category Theory

Author: Steven Roman

Publisher: Birkhäuser

ISBN: 331941917X

Category: Mathematics

Page: 169

View: 1405

This textbook provides an introduction to elementary category theory, with the aim of making what can be a confusing and sometimes overwhelming subject more accessible. In writing about this challenging subject, the author has brought to bear all of the experience he has gained in authoring over 30 books in university-level mathematics. The goal of this book is to present the five major ideas of category theory: categories, functors, natural transformations, universality, and adjoints in as friendly and relaxed a manner as possible while at the same time not sacrificing rigor. These topics are developed in a straightforward, step-by-step manner and are accompanied by numerous examples and exercises, most of which are drawn from abstract algebra. The first chapter of the book introduces the definitions of category and functor and discusses diagrams,duality, initial and terminal objects, special types of morphisms, and some special types of categories,particularly comma categories and hom-set categories. Chapter 2 is devoted to functors and naturaltransformations, concluding with Yoneda's lemma. Chapter 3 presents the concept of universality and Chapter 4 continues this discussion by exploring cones, limits, and the most common categorical constructions – products, equalizers, pullbacks and exponentials (along with their dual constructions). The chapter concludes with a theorem on the existence of limits. Finally, Chapter 5 covers adjoints and adjunctions. Graduate and advanced undergraduates students in mathematics, computer science, physics, or related fields who need to know or use category theory in their work will find An Introduction to Category Theory to be a concise and accessible resource. It will be particularly useful for those looking for a more elementary treatment of the topic before tackling more advanced texts.
Posted in Mathematics

Maß und Integral

Author: Martin Brokate,Götz Kersting

Publisher: Springer-Verlag

ISBN: 303460646X

Category: Mathematics

Page: 160

View: 2674

Der Integralbegriff in seiner Ausprägung durch Henri Lebesgue ist ein grundlegendes Werkzeug in der modernen Analysis, Numerik und Stochastik. Für Lehrveranstaltungen zu diesen Gebieten der Mathematik bereiten die Autoren wesentliche Sachverhalte in kompakter Weise auf. Das Buch liefert Orientierung und Material für verschiedene Varianten zwei- oder vierstündiger Lehrveranstaltungen. In einem ergänzenden Abschnitt werden um den Begriff der Konvexität herum Verbünde zur Funktionalanalysis hergestellt.
Posted in Mathematics

An Introduction to Category Theory

Author: Harold Simmons

Publisher: Cambridge University Press

ISBN: 1139503324

Category: Mathematics

Page: N.A

View: 6292

Category theory provides a general conceptual framework that has proved fruitful in subjects as diverse as geometry, topology, theoretical computer science and foundational mathematics. Here is a friendly, easy-to-read textbook that explains the fundamentals at a level suitable for newcomers to the subject. Beginning postgraduate mathematicians will find this book an excellent introduction to all of the basics of category theory. It gives the basic definitions; goes through the various associated gadgetry, such as functors, natural transformations, limits and colimits; and then explains adjunctions. The material is slowly developed using many examples and illustrations to illuminate the concepts explained. Over 200 exercises, with solutions available online, help the reader to access the subject and make the book ideal for self-study. It can also be used as a recommended text for a taught introductory course.
Posted in Mathematics

Categories, Types and Data Structures

An Introduction to Category Theory for the Working Computer Scientist

Author: Andréa Asperti,G. Longo

Publisher: MIT Press (MA)

ISBN: 9780262011259

Category: Computers

Page: 306

View: 3326

Posted in Computers

Introduction to Higher-Order Categorical Logic

Author: J. Lambek,P. J. Scott

Publisher: Cambridge University Press

ISBN: 9780521356534

Category: Mathematics

Page: 304

View: 3680

Part I indicates that typed-calculi are a formulation of higher-order logic, and cartesian closed categories are essentially the same. Part II demonstrates that another formulation of higher-order logic is closely related to topos theory.
Posted in Mathematics

Category Theory for the Sciences

Author: David I. Spivak

Publisher: MIT Press

ISBN: 0262028131

Category: Computers

Page: 486

View: 6336

An introduction to category theory as a rigorous, flexible, and coherent modeling language that can be used across the sciences.
Posted in Computers

Basic Category Theory for Computer Scientists

Author: Benjamin C. Pierce,Benjamin C.. Pierce,Ierce Benjamin

Publisher: MIT Press

ISBN: 9780262660716

Category: Computers

Page: 100

View: 2826

Basic Category Theory for Computer Scientists provides a straightforward presentation of the basic constructions and terminology of category theory, including limits, functors, natural transformations, adjoints, and cartesian closed categories. Category theory is a branch of pure mathematics that is becoming an increasingly important tool in theoretical computer science, especially in programming language semantics, domain theory, and concurrency, where it is already a standard language of discourse. Assuming a minimum of mathematical preparation, Basic Category Theory for Computer Scientists provides a straightforward presentation of the basic constructions and terminology of category theory, including limits, functors, natural transformations, adjoints, and cartesian closed categories. Four case studies illustrate applications of category theory to programming language design, semantics, and the solution of recursive domain equations. A brief literature survey offers suggestions for further study in more advanced texts. Contents Tutorial * Applications * Further Reading
Posted in Computers

Principia Mathematica.

Author: Alfred North Whitehead,Bertrand Russell

Publisher: N.A


Category: Logic, Symbolic and mathematical

Page: 167

View: 8694

Posted in Logic, Symbolic and mathematical

Einführung in die Kategorientheorie

Mit ausführlichen Erklärungen und zahlreichen Beispielen

Author: Martin Brandenburg

Publisher: Springer-Verlag

ISBN: 3662535211

Category: Mathematics

Page: 343

View: 960

Die Kategorientheorie deckt die innere Architektur der Mathematik auf. Dabei werden die strukturellen Gemeinsamkeiten zwischen mathematischen Disziplinen und ihren spezifischen Konstruktionen herausgearbeitet. Dieses Buch gibt eine systematische Einführung in die Grundbegriffe der Kategorientheorie. Zahlreiche ausführliche Erklärungstexte sowie die große Menge an Beispielen helfen beim Einstieg in diese verhältnismäßig abstrakte Theorie. Es werden viele konkrete Anwendungen besprochen, welche die Nützlichkeit der Kategorientheorie im mathematischen Alltag belegen. Jedes Kapitel wird mit einem motivierenden Text eingeleitet und mit einer großen Aufgabensammlung abgeschlossen. An Vorwissen muss der Leser lediglich ein paar Grundbegriffe des Mathematik-Studiums mitbringen. Die vorliegende zweite vollständig durchgesehene Auflage ist um ausführliche Lösungen zu ausgewählten Aufgaben ergänzt.
Posted in Mathematics

Abstract and concrete categories

the joy of cats

Author: Jiří Adámek (ing.),Horst Herrlich,George E. Strecker

Publisher: Wiley-Interscience


Category: Mathematics

Page: 482

View: 7730

A modern introduction to the theory of structures via the language of category theory. Unique to this book is the emphasis on concrete categories. Also noteworthy is the systematic treatment of factorization structures, which gives a new, unifying perspective to earlier work and summarizes recent developments. Each categorical notion is accompanied by many examples, usually moving from special cases to more general cases. Comprises seven chapters; the first five present the basic theory, while the last two contain more recent research results in the realm of concrete categories, cartesian closed categories and quasitopoi. The prerequisite is an elementary knowledge of set theory. Contains exercises.
Posted in Mathematics

Die Kunst der JavaScript-Programmierung

Eine moderne Einführung in die Sprache des Web

Author: Marijn Haverbeke

Publisher: dpunkt.verlag

ISBN: 3864911915

Category: Computers

Page: 240

View: 3650

Das Buch ist eine Einführung in JavaScript, die sich auf gute Programmiertechniken konzentriert. Der Autor lehrt den Leser, wie man die Eleganz und Präzision von JavaScript nutzt, um browserbasierte Anwendungen zu schreiben. Das Buch beginnt mit den Grundlagen der Programmierung - Variablen, Kontrollstrukturen, Funktionen und Datenstrukturen -, dann geht es auf komplexere Themen ein, wie die funktionale und objektorientierte Programmierung, reguläre Ausdrücke und Browser-Events. Unterstützt von verständlichen Beispielen wird der Leser rasch die Sprache des Web fließend 'sprechen' können.
Posted in Computers

Categories and Modules with K-Theory in View

Author: A. J. Berrick,M. E. Keating

Publisher: Cambridge University Press

ISBN: 9780521632768

Category: Mathematics

Page: 361

View: 9662

This book, first published in 2000, develops aspects of category theory fundamental to the study of algebraic K-theory. Ring and module theory illustrates category theory which provides insight into more advanced topics in module theory. Starting with categories in general, the text then examines categories of K-theory. This leads to the study of tensor products and the Morita theory. The categorical approach to localizations and completions of modules is formulated in terms of direct and inverse limits, prompting a discussion of localization of categories in general. Finally, local-global techniques which supply information about modules from their localizations and completions and underlie some interesting applications of K-theory to number theory and geometry are considered. Many useful exercises, concrete illustrations of abstract concepts placed in their historical settings and an extensive list of references are included. This book will help all who wish to work in K-theory to master its prerequisites.
Posted in Mathematics

Introduction to Coalgebra

Towards Mathematics of States and Observation

Author: Bart Jacobs

Publisher: Cambridge University Press

ISBN: 1316833976

Category: Mathematics

Page: N.A

View: 2439

The area of coalgebra has emerged within theoretical computer science with a unifying claim: to be the mathematics of computational dynamics. It combines ideas from the theory of dynamical systems and from the theory of state-based computation. Although still in its infancy, it is an active area of research that generates wide interest. Written by one of the founders of the field, this book acts as the first mature and accessible introduction to coalgebra. It provides clear mathematical explanations, with many examples and exercises involving deterministic and non-deterministic automata, transition systems, streams, Markov chains and weighted automata. The theory is expressed in the language of category theory, which provides the right abstraction to make the similarity and duality between algebra and coalgebra explicit, and which the reader is introduced to in a hands-on manner. The book will be useful to mathematicians and (theoretical) computer scientists and will also be of interest to mathematical physicists, biologists and economists.
Posted in Mathematics

Unglaubliche Zahlen

Author: Ian Stewart

Publisher: Rowohlt Verlag GmbH

ISBN: 3644564310

Category: Mathematics

Page: 448

View: 7377

In diesem Buch nimmt der britische Mathe-Guru seine Leser mit auf eine Reise durch das Reich der Zahlen – reelle, rationale, irrationale, komplexe; ganz, ganz kleine und unendlich große, Fraktale, Logarithmen, Hochzahlen, Primzahlen, Kusszahlen und viele mehr. Jedes Kapitel konzentriert sich auf eine Zahl oder Zahlengruppe und erläutert, warum sie so interessant ist. «Jede Zahl hat ihre eigene Geschichte zu erzählen», heißt es im Vorwort. Stewart erzählt sie mit Begeisterung und versteht es geschickt, diese Geschichten miteinander zu verweben, ob es um die Zahl Pi geht oder zum Schluss auch um Geheimcodes, den Rubikwürfel und Sudoku. Darüber hinaus erfährt man viel über die Geschichte der Mathematik und die Rolle, die sie für unsere Entwicklung spielt. Schließlich waren es die Zahlen, so der Autor, «die es der Menschheit ermöglicht haben, sich aus dem Schlamm zu ziehen und nach den Sternen zu greifen».
Posted in Mathematics

Beyond Topology

Author: FrŽdŽric Mynard,Elliott Pearl

Publisher: American Mathematical Soc.

ISBN: 082184279X

Category: Mathematics

Page: 383

View: 9305

The purpose of this collection is to guide the non-specialist through the basic theory of various generalizations of topology, starting with clear motivations for their introduction. Structures considered include closure spaces, convergence spaces, proximity spaces, quasi-uniform spaces, merotopic spaces, nearness and filter spaces, semi-uniform convergence spaces, and approach spaces. Each chapter is self-contained and accessible to the graduate student, and focuses on motivations to introduce the generalization of topologies considered, presenting examples where desirable properties are not present in the realm of topologies and the problem is remedied in the more general context. Then, enough material will be covered to prepare the reader for more advanced papers on the topic. While category theory is not the focus of the book, it is a convenient language to study these structures and, while kept as a tool rather than an object of study, will be used throughout the book. For this reason, the book contains an introductory chapter on categorical topology.
Posted in Mathematics

Current Research in Operational Quantum Logic

Algebras, Categories, Languages

Author: Bob Coecke,David Moore,Alexander Wilce

Publisher: Springer Science & Business Media

ISBN: 9780792362586

Category: Science

Page: 325

View: 3346

The present volume has its origins in a pair of informal workshops held at the Free University of Brussels, in June of 1998 and May of 1999, named "Current Research 1 in Operational Quantum Logic". These brought together mathematicians and physicists working in operational quantum logic and related areas, as well as a number of interested philosophers of science, for a rare opportunity to discuss recent developments in this field. After some discussion, it was decided that, rather than producing a volume of conference proceedings, we would try to organize the conferees to produce a set of comprehensive survey papers, which would not only report on recent developments in quantum logic, but also provide a tutorial overview of the subject suitable for an interested non-specialist audience. The resulting volume provides an overview of the concepts and methods used in current research in quantum logic, viewed both as a branch of mathemati cal physics and as an area of pure mathematics. The first half of the book is concerned with the algebraic side of the subject, and in particular the theory of orthomodular lattices and posets, effect algebras, etc. In the second half of the book, special attention is given to categorical methods and to connections with theoretical computer science. At the 1999 workshop, we were fortunate to hear three excellent lectures by David J. Foulis, represented here by two contributions. Dave's work, spanning 40 years, has helped to define, and continues to reshape, the field of quantum logic.
Posted in Science

An Invitation to Noncommutative Geometry

Author: Matilde Marcolli

Publisher: World Scientific

ISBN: 9812814337

Category: Mathematics

Page: 506

View: 1888

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. Sample Chapter(s). A Walk in the Noncommutative Garden (1,639 KB). Contents: A Walk in the Noncommutative Garden (A Connes & M Marcolli); Renormalization of Noncommutative Quantum Field Theory (H Grosse & R Wulkenhaar); Lectures on Noncommutative Geometry (M Khalkhali); Noncommutative Bundles and Instantons in Tehran (G Landi & W D van Suijlekom); Lecture Notes on Noncommutative Algebraic Geometry and Noncommutative Tori (S Mahanta); Lectures on Derived and Triangulated Categories (B Noohi); Examples of Noncommutative Manifolds: Complex Tori and Spherical Manifolds (J Plazas); D-Branes in Noncommutative Field Theory (R J Szabo). Readership: Researchers in mathematical and theoretical physics, geometry and topology, algebra and number theory.
Posted in Mathematics

Categories and Sheaves

Author: Masaki Kashiwara,Pierre Schapira

Publisher: Springer Science & Business Media

ISBN: 3540279490

Category: Mathematics

Page: 498

View: 4865

Categories and sheaves appear almost frequently in contemporary advanced mathematics. This book covers categories, homological algebra and sheaves in a systematic manner starting from scratch and continuing with full proofs to the most recent results in the literature, and sometimes beyond. The authors present the general theory of categories and functors, emphasizing inductive and projective limits, tensor categories, representable functors, ind-objects and localization.
Posted in Mathematics

Semantics of Programming Languages

Structures and Techniques

Author: Carl A. Gunter

Publisher: MIT Press

ISBN: 9780262570954

Category: Computers

Page: 441

View: 2363

Semantics of Programming Languages exposes the basic motivations and philosophy underlying the applications of semantic techniques in computer science. It introduces the mathematical theory of programming languages with an emphasis on higher-order functions and type systems. Designed as a text for upper-level and graduate-level students, the mathematically sophisticated approach will also prove useful to professionals who want an easily referenced description of fundamental results and calculi.Basic connections between computational behavior, denotational semantics, and the equational logic of functional programs are thoroughly and rigorously developed. Topics covered include models of types, operational semantics, category theory, domain theory, fixed point (denotational). semantics, full abstraction and other semantic correspondence criteria, types and evaluation, type checking and inference, parametric polymorphism, and subtyping. All topics are treated clearly and in depth, with complete proofs for the major results and numerous exercises.
Posted in Computers