Visar resultat för..."VARIANT PRESS"
80 produkter
80 produkter
Häftad, Engelska, 2017
276 kr
Skickas inom 3-6 vardagar
Inbunden, Engelska, 2024
937 kr
Skickas inom 7-10 vardagar
Matrix theory is the lingua franca of everyone who deals with dynamically evolving systems, and familiarity with efficient matrix computations is an essential part of the modern curriculum in dynamical systems and associated computation. This is a master's-level textbook on dynamical systems and computational matrix algebra. It is based on the remarkable identity of these two disciplines in the context of linear, time-variant, discrete-time systems and their algebraic equivalent, quasi-separable systems. The authors' approach provides a single, transparent framework that yields simple derivations of basic notions, as well as new and fundamental results such as constrained model reduction, matrix interpolation theory and scattering theory. This book outlines all the fundamental concepts that allow readers to develop the resulting recursive computational schemes needed to solve practical problems. An ideal treatment for graduate students and academics in electrical and computer engineering, computer science and applied mathematics.
Häftad, Engelska, 2020
694 kr
Skickas inom 3-6 vardagar
Inbunden, Engelska, 2020
749 kr
Skickas inom 5-8 vardagar
Inbunden, Engelska, 2021
602 kr
Skickas inom 3-6 vardagar
Häftad, Engelska, 2021
432 kr
Skickas inom 3-6 vardagar
Häftad, Engelska, 2021
239 kr
Skickas inom 3-6 vardagar
441 kr
Skickas inom 5-8 vardagar
331 kr
Skickas inom 5-8 vardagar
Inbunden, Engelska, 2023
359 kr
Skickas inom 5-8 vardagar
Inbunden, Engelska, 2023
400 kr
Skickas inom 5-8 vardagar
Häftad, Engelska, 2023
207 kr
Skickas inom 5-8 vardagar
Häftad, Engelska, 2023
231 kr
Skickas inom 5-8 vardagar
Häftad, Engelska, 2019
171 kr
Skickas inom 11-20 vardagar
Lost in Christmas Town and surrounded by delicious baked treats and tasty snacks, poor Zero's hunger got the better of him and he ended up biting off more than he could chew. Now he's trapped with the grumpy Mr. Myzer, the only person in town who hates Christmas! He must have a good reason to be so melancholy with so much joy and delight around him, but what could it be?Back in Halloween Town, Jack is so worried about his best friend that he reluctantly sends Lock, Shock, and Barrel on a mission to get him back. Surely this time they'll take the job seriously and won't let shenanigans and tomfoolery distract them from bringing Zero straight home....right?
Häftad, Engelska, 1993
457 kr
Skickas inom 5-8 vardagar
Critical editions of most classical authors are based on readings transmitted by medieval scholars that can be examined and collated. Modern editions of Petronius, on the other hand, are principally based on printed editions, most of them published in France during the sixteenth century. In this volume T. Wade Richardson considers the use made of the Petronius manuscripts then extant by seven French humanist editors for their various editions, commentaries, and notes.Some of the manuscripts they used may be equated with extant exemplars, which therefore serve as a good check on the quality of their readings. But as much as half of the text rests on the sixteenth-century witness alone. Through a broad and integrated study of the problems of the Petronius text the author attempts to unravel the tangled skein of humanist work on Petronius, to settle some of the old textual puzzles, and to solidify the text and recast the apparatus.Richardson also provides information on the codicology and palaeography of the texts and on the talents and habits of the scholars who created them.
Inbunden, Engelska, 2023
1 277 kr
Skickas inom 3-6 vardagar
Häftad, Engelska, 2023
246 kr
Skickas inom 5-8 vardagar
Inbunden, Engelska, 2023
1 314 kr
Skickas
Since the eighteenth century, many if not most ancient and medieval manuscripts or other text-bearing or associated objects have been procured through imperial expropriation or through the antiquities market with little or no evidence of findspot or place of original deposition and with no assurance of legal provenance or authenticity. The consequences of these questionable acquisition practices for scholarship and for our understanding of the past are the focus of much enquiry. Recent high-profile acquisitions (and subsequent returns) of text-bearing objects by prominent private collectors and museums and the appearance on the market of demonstrably modern forgeries have resulted in increased scrutiny of the intellectual and commercial impacts of academic engagement. Scholarly research can abet the antiquities market directly or indirectly through identification, authentication and legitimation of illegally traded text-bearing objects. These harmful complications of well-established academic practice raise important questions about how and even if the academy should engage with ancient texts and text-bearing objects of uncertain provenance. Through a wide-ranging set of case studies, variant scholarship focuses on the methodological, theoretical, and ethical dilemmas facing scholars when working with ancient texts in modern contexts. This book is intended for those interested in the historical practices of research into ancient manuscripts, ethical quandaries in studying unprovenanced textual materials, and the unintended consequences of scholarly interactions with problematic text-bearing objects.
Häftad, Engelska
582 kr
Tillfälligt slut
Inbunden, Engelska, 2023
375 kr
Tillfälligt slut
Häftad, Engelska, 2023
255 kr
Tillfälligt slut
Häftad, Engelska, 2020
765 kr
Skickas inom 5-8 vardagar
This book gives a clear introductory account of equivariant cohomology, a central topic in algebraic topology. Equivariant cohomology is concerned with the algebraic topology of spaces with a group action, or in other words, with symmetries of spaces. First defined in the 1950s, it has been introduced into K-theory and algebraic geometry, but it is in algebraic topology that the concepts are the most transparent and the proofs are the simplest. One of the most useful applications of equivariant cohomology is the equivariant localization theorem of Atiyah-Bott and Berline-Vergne, which converts the integral of an equivariant differential form into a finite sum over the fixed point set of the group action, providing a powerful tool for computing integrals over a manifold. Because integrals and symmetries are ubiquitous, equivariant cohomology has found applications in diverse areas of mathematics and physics.Assuming readers have taken one semester of manifold theory and a year of algebraic topology, Loring Tu begins with the topological construction of equivariant cohomology, then develops the theory for smooth manifolds with the aid of differential forms. To keep the exposition simple, the equivariant localization theorem is proven only for a circle action. An appendix gives a proof of the equivariant de Rham theorem, demonstrating that equivariant cohomology can be computed using equivariant differential forms. Examples and calculations illustrate new concepts. Exercises include hints or solutions, making this book suitable for self-study.
Del 282 - London Mathematical Society Lecture Note Series
Auslander-Buchweitz Approximations of Equivariant Modules
Häftad, Engelska, 2000
916 kr
Skickas inom 7-10 vardagar
This book, first published in 2000, focuses on homological aspects of equivariant modules. It presents a homological approximation theory in the category of equivariant modules, unifying the Cohen-Macaulay approximations in commutative ring theory and Ringel's theory of delta-good approximations for quasi-hereditary algebras and reductive groups. The book provides a detailed introduction to homological algebra, commutative ring theory and homological theory of comodules of co-algebras over an arbitrary base. It aims to overcome the difficulty of generalising known homological results in representation theory. This book will be of interest to researchers and graduate students in algebra, specialising in commutative ring theory and representation theory.
Inbunden, Engelska, 2020
1 678 kr
Skickas inom 5-8 vardagar
This book gives a clear introductory account of equivariant cohomology, a central topic in algebraic topology. Equivariant cohomology is concerned with the algebraic topology of spaces with a group action, or in other words, with symmetries of spaces. First defined in the 1950s, it has been introduced into K-theory and algebraic geometry, but it is in algebraic topology that the concepts are the most transparent and the proofs are the simplest. One of the most useful applications of equivariant cohomology is the equivariant localization theorem of Atiyah-Bott and Berline-Vergne, which converts the integral of an equivariant differential form into a finite sum over the fixed point set of the group action, providing a powerful tool for computing integrals over a manifold. Because integrals and symmetries are ubiquitous, equivariant cohomology has found applications in diverse areas of mathematics and physics.Assuming readers have taken one semester of manifold theory and a year of algebraic topology, Loring Tu begins with the topological construction of equivariant cohomology, then develops the theory for smooth manifolds with the aid of differential forms. To keep the exposition simple, the equivariant localization theorem is proven only for a circle action. An appendix gives a proof of the equivariant de Rham theorem, demonstrating that equivariant cohomology can be computed using equivariant differential forms. Examples and calculations illustrate new concepts. Exercises include hints or solutions, making this book suitable for self-study.
Häftad, Engelska, 2023
230 kr
Skickas inom 7-10 vardagar
Gauge symmetries play a central role, both in the mathematical foundations as well as the conceptual construction of modern (particle) physics theories. However, it is yet unclear whether they form a necessary component of theories, or whether they can be eliminated. It is also unclear whether they are merely an auxiliary tool to simplify (and possibly localize) calculations or whether they contain independent information. Therefore their status, both in physics and philosophy of physics, remains to be fully clarified. This Element reviews the current state of affairs on both the philosophy and the physics side. In particular, it focuses on the circumstances in which the restriction of gauge theories to gauge invariant information on an observable level is warranted, using the Brout-Englert-Higgs theory as an example of particular current importance. Finally, the authors determine a set of yet to be answered questions to clarify the status of gauge symmetries.
Häftad, Engelska, 2025
441 kr
Skickas inom 7-10 vardagar
Equivariant cohomology has become an indispensable tool in algebraic geometry and in related areas including representation theory, combinatorial and enumerative geometry, and algebraic combinatorics. This text introduces the main ideas of the subject for first- or second-year graduate students in mathematics, as well as researchers working in algebraic geometry or combinatorics. The first six chapters cover the basics: definitions via finite-dimensional approximation spaces, computations in projective space, and the localization theorem. The rest of the text focuses on examples – toric varieties, Grassmannians, and homogeneous spaces – along with applications to Schubert calculus and degeneracy loci. Prerequisites are kept to a minimum, so that one-semester graduate-level courses in algebraic geometry and topology should be sufficient preparation. Featuring numerous exercises, examples, and material that has not previously appeared in textbook form, this book will be a must-have reference and resource for both students and researchers for years to come.
Del 210 - Cambridge Studies in Advanced Mathematics
Equivariant Cohomology in Algebraic Geometry
Inbunden, Engelska, 2023
652 kr
Skickas inom 7-10 vardagar
Equivariant cohomology has become an indispensable tool in algebraic geometry and in related areas including representation theory, combinatorial and enumerative geometry, and algebraic combinatorics. This text introduces the main ideas of the subject for first- or second-year graduate students in mathematics, as well as researchers working in algebraic geometry or combinatorics. The first six chapters cover the basics: definitions via finite-dimensional approximation spaces, computations in projective space, and the localization theorem. The rest of the text focuses on examples - toric varieties, Grassmannians, and homogeneous spaces - along with applications to Schubert calculus and degeneracy loci. Prerequisites are kept to a minimum, so that one-semester graduate-level courses in algebraic geometry and topology should be sufficient preparation. Featuring numerous exercises, examples, and material that has not previously appeared in textbook form, this book will be a must-have reference and resource for both students and researchers for years to come.
Del 223 - Cambridge Studies in Advanced Mathematics
Equivariant Principal ∞-Bundles
Inbunden, Engelska, 2026
751 kr
Kommande
Principal bundles and their associated fiber bundles famously play a foundational role in both algebraic and differential topology, as well as in fundamental and solid-state physics. More recently, their equivariant and higher homotopy enhancements (gerbes) have been crucial in generalized cohomology theory and for the physics of extended solitons and topological phases. This text is the first to offer a unified perspective of, and introduction to, these topics, providing an insight into material previously scattered across the literature. After a self-contained account of the classical theory of equivariant principal bundles in modern topological groupoid language, the book develops, on the novel backdrop of cohesive higher topos theory, a powerful theory of equivariant principal higher bundles. It establishes new methods like the 'smooth Oka principle' and 'twisted Elmendorf theorem' to elegantly prove classification results and clarify the relation to proper equivariant generalized cohomology theories.
- Nyhet
Häftad, Engelska, 2026
916 kr
Skickas inom 7-10 vardagar
A central question in equivariant algebraic K-theory asks whether there exists an equivariant K-theory machine from genuine symmetric monoidal G-categories to orthogonal G-spectra that preserves equivariant algebraic structures. This book answers this question positively by constructing an enriched multifunctor from the G-categorically enriched multicategory of O-pseudoalgebras to the symmetric monoidal category of orthogonal G-spectra, for a compact Lie group G and a 1-connected pseudo-commutative G-categorical operad O. As the main application of its enriched multifunctoriality, this machine preserves all equivariant algebraic structures parametrized by multicategories enriched in either G-spaces or G-categories. In addition to highly detailed proofs of all the main results, this work also reviews relevant concepts, including orthogonal G-spectra. Appendices provide the necessary background on symmetric monoidal categories, multicategories, and classifying space. Clearly written and well organized, this book will be a useful reference for researchers and graduate students for years to come.
Häftad, Engelska, 2026
675 kr
Kommande
This book presents an accessible approach to an emerging theory of picture groups. Intended for graduate students and researchers, it explains the connections between several branches of algebra and topology, and demonstrates how they interact. It begins with foundational material on modulated quivers and their representations, cluster categories, and semi-invariants. The text then develops virtual analogues of classical results, allowing dimension vectors with negative coordinates. Finally, it defines the notion of a picture group associated to a semi-invariant picture, also introducing picture spaces which are CW-complexes constructed from semi-invariant pictures. For quivers of type $A_n$ the key theorem draws on K-theory and states that the associated picture space is a $K(G(A_n) , 1)$ connected CW-complex for the corresponding group $G(A_n)$ associated with the same quiver.
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