Coherence in Three-Dimensional Category Theory

Coherence in Three-Dimensional Category Theory PDF Author: Nick Gurski
Publisher: Cambridge University Press
ISBN: 1107034892
Category : Mathematics
Languages : en
Pages : 287

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Book Description
Serves as an introduction to higher categories as well as a reference point for many key concepts in the field.

Coherence in Three-Dimensional Category Theory

Coherence in Three-Dimensional Category Theory PDF Author: Nick Gurski
Publisher: Cambridge University Press
ISBN: 1107034892
Category : Mathematics
Languages : en
Pages : 287

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Book Description
Serves as an introduction to higher categories as well as a reference point for many key concepts in the field.

Coherence in Three-Dimensional Category Theory

Coherence in Three-Dimensional Category Theory PDF Author: Nick Gurski
Publisher:
ISBN: 9781107336896
Category : Tricategories
Languages : en
Pages : 288

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Book Description
Serves as an introduction to higher categories as well as a reference point for many key concepts in the field.

Category Theory in Context

Category Theory in Context PDF Author: Emily Riehl
Publisher: Courier Dover Publications
ISBN: 0486820807
Category : Mathematics
Languages : en
Pages : 273

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Book Description
Introduction to concepts of category theory — categories, functors, natural transformations, the Yoneda lemma, limits and colimits, adjunctions, monads — revisits a broad range of mathematical examples from the categorical perspective. 2016 edition.

Simplicial Methods for Higher Categories

Simplicial Methods for Higher Categories PDF Author: Simona Paoli
Publisher: Springer
ISBN: 3030056740
Category : Mathematics
Languages : en
Pages : 353

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Book Description
This monograph presents a new model of mathematical structures called weak n-categories. These structures find their motivation in a wide range of fields, from algebraic topology to mathematical physics, algebraic geometry and mathematical logic. While strict n-categories are easily defined in terms associative and unital composition operations they are of limited use in applications, which often call for weakened variants of these laws. The author proposes a new approach to this weakening, whose generality arises not from a weakening of such laws but from the very geometric structure of its cells; a geometry dubbed weak globularity. The new model, called weakly globular n-fold categories, is one of the simplest known algebraic structures yielding a model of weak n-categories. The central result is the equivalence of this model to one of the existing models, due to Tamsamani and further studied by Simpson. This theory has intended applications to homotopy theory, mathematical physics and to long-standing open questions in category theory. As the theory is described in elementary terms and the book is largely self-contained, it is accessible to beginning graduate students and to mathematicians from a wide range of disciplines well beyond higher category theory. The new model makes a transparent connection between higher category theory and homotopy theory, rendering it particularly suitable for category theorists and algebraic topologists. Although the results are complex, readers are guided with an intuitive explanation before each concept is introduced, and with diagrams showing the interconnections between the main ideas and results.

Coherence for Tricategories

Coherence for Tricategories PDF Author: Robert Gordon
Publisher: American Mathematical Soc.
ISBN: 0821803441
Category : Mathematics
Languages : en
Pages : 94

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Book Description
This work defines the concept of tricategory as the natural 3-dimensional generalization of bicategory. Trihomomorphism and triequivalence for tricategories are also defined so as to extend the concepts of homomorphism and biequivalence for bicategories.

2-Dimensional Categories

2-Dimensional Categories PDF Author: Niles Johnson
Publisher: Oxford University Press, USA
ISBN: 0198871376
Category : Mathematics
Languages : en
Pages : 636

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Book Description
2-Dimensional Categories is an introduction to 2-categories and bicategories, assuming only the most elementary aspects of category theory.

Bimonoidal Categories, $E_n$-Monoidal Categories, and Algebraic $K$-Theory

Bimonoidal Categories, $E_n$-Monoidal Categories, and Algebraic $K$-Theory PDF Author: Niles Johnson
Publisher: American Mathematical Society
ISBN: 1470478110
Category : Mathematics
Languages : en
Pages : 633

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Book Description
Bimonoidal categories are categorical analogues of rings without additive inverses. They have been actively studied in category theory, homotopy theory, and algebraic $K$-theory since around 1970. There is an abundance of new applications and questions of bimonoidal categories in mathematics and other sciences. The three books published by the AMS in the Mathematical Surveys and Monographs series under the title Bimonoidal Categories, $E_n$-Monoidal Categories, and Algebraic $K$-Theory (Volume I: Symmetric Bimonoidal Categories and Monoidal Bicategories, Volume II: Braided Bimonoidal Categories with Applications, and Volume III: From Categories to Structured Ring Spectra?this book) provide a unified treatment of bimonoidal and higher ring-like categories, their connection with algebraic $K$-theory and homotopy theory, and applications to quantum groups and topological quantum computation. With ample background material, extensive coverage, detailed presentation of both well-known and new theorems, and a list of open questions, this work is a user-friendly resource for beginners and experts alike. Part 1 of this book is a detailed study of enriched monoidal categories, pointed diagram categories, and enriched multicategories. Using this machinery, Part 2 discusses the rich interconnection between the higher ring-like categories, homotopy theory, and algebraic $K$-theory. Starting with a chapter on homotopy theory background, the first half of Part 2 constructs the Segal $K$-theory functor and the Elmendorf-Mandell $K$-theory multifunctor from permutative categories to symmetric spectra. For the latter, the detailed treatment here includes identification and correction of some subtle errors concerning its extended domain. The second half applies the $K$-theory multifunctor to small ring, bipermutative, braided ring, and $E_n$-monoidal categories to obtain, respectively, strict ring, $E_{infty}$-, $E_2$-, and $E_n$-symmetric spectra.

Bimonoidal Categories, $E_n$-Monoidal Categories, and Algebraic $K$-Theory

Bimonoidal Categories, $E_n$-Monoidal Categories, and Algebraic $K$-Theory PDF Author: Donald Yau
Publisher: American Mathematical Society
ISBN: 1470478099
Category : Mathematics
Languages : en
Pages : 555

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Book Description
Bimonoidal categories are categorical analogues of rings without additive inverses. They have been actively studied in category theory, homotopy theory, and algebraic $K$-theory since around 1970. There is an abundance of new applications and questions of bimonoidal categories in mathematics and other sciences. The three books published by the AMS in the Mathematical Surveys and Monographs series under the general title Bimonoidal Categories, $E_n$-Monoidal Categories, and Algebraic $K$-Theory (Volume I: Symmetric Bimonoidal Categories and Monoidal Bicategories?this book, Volume II: Braided Bimonoidal Categories with Applications, and Volume III: From Categories to Structured Ring Spectra) provide a unified treatment of bimonoidal and higher ring-like categories, their connection with algebraic $K$-theory and homotopy theory, and applications to quantum groups and topological quantum computation. With ample background material, extensive coverage, detailed presentation of both well-known and new theorems, and a list of open questions, this work is a user-friendly resource for beginners and experts alike. Part 1 of this book proves in detail Laplaza's two coherence theorems and May's strictification theorem of symmetric bimonoidal categories, as well as their bimonoidal analogues. This part includes detailed corrections to several inaccurate statements and proofs found in the literature. Part 2 proves Baez's Conjecture on the existence of a bi-initial object in a 2-category of symmetric bimonoidal categories. The next main theorem states that a matrix construction, involving the matrix product and the matrix tensor product, sends a symmetric bimonoidal category with invertible distributivity morphisms to a symmetric monoidal bicategory, with no strict structure morphisms in general.

Lectures on Contact 3-Manifolds, Holomorphic Curves and Intersection Theory

Lectures on Contact 3-Manifolds, Holomorphic Curves and Intersection Theory PDF Author: Chris Wendl
Publisher: Cambridge University Press
ISBN: 1108759580
Category : Mathematics
Languages : en
Pages : 198

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Book Description
Intersection theory has played a prominent role in the study of closed symplectic 4-manifolds since Gromov's famous 1985 paper on pseudoholomorphic curves, leading to myriad beautiful rigidity results that are either inaccessible or not true in higher dimensions. Siefring's recent extension of the theory to punctured holomorphic curves allowed similarly important results for contact 3-manifolds and their symplectic fillings. Based on a series of lectures for graduate students in topology, this book begins with an overview of the closed case, and then proceeds to explain the essentials of Siefring's intersection theory and how to use it, and gives some sample applications in low-dimensional symplectic and contact topology. The appendices provide valuable information for researchers, including a concise reference guide on Siefring's theory and a self-contained proof of a weak version of the Micallef–White theorem.

Noncommutative Function-Theoretic Operator Theory and Applications

Noncommutative Function-Theoretic Operator Theory and Applications PDF Author: Joseph A. Ball
Publisher: Cambridge University Press
ISBN: 131651899X
Category : Mathematics
Languages : en
Pages : 439

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Book Description
This concise volume shows how ideas from function and systems theory lead to new insights for noncommutative multivariable operator theory.