The Lefschetz Properties

The Lefschetz Properties

Author: Tadahito Harima

Publisher: Springer

Published: 2013-08-23

Total Pages: 268

ISBN-13: 3642382061

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This is a monograph which collects basic techniques, major results and interesting applications of Lefschetz properties of Artinian algebras. The origin of the Lefschetz properties of Artinian algebras is the Hard Lefschetz Theorem, which is a major result in algebraic geometry. However, for the last two decades, numerous applications of the Lefschetz properties to other areas of mathematics have been found, as a result of which the theory of the Lefschetz properties is now of great interest in its own right. It also has ties to other areas, including combinatorics, algebraic geometry, algebraic topology, commutative algebra and representation theory. The connections between the Lefschetz property and other areas of mathematics are not only diverse, but sometimes quite surprising, e.g. its ties to the Schur-Weyl duality. This is the first book solely devoted to the Lefschetz properties and is the first attempt to treat those properties systematically.


Computational Topology for Data Analysis

Computational Topology for Data Analysis

Author: Tamal Krishna Dey

Publisher: Cambridge University Press

Published: 2022-03-10

Total Pages: 456

ISBN-13: 1009103199

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Topological data analysis (TDA) has emerged recently as a viable tool for analyzing complex data, and the area has grown substantially both in its methodologies and applicability. Providing a computational and algorithmic foundation for techniques in TDA, this comprehensive, self-contained text introduces students and researchers in mathematics and computer science to the current state of the field. The book features a description of mathematical objects and constructs behind recent advances, the algorithms involved, computational considerations, as well as examples of topological structures or ideas that can be used in applications. It provides a thorough treatment of persistent homology together with various extensions – like zigzag persistence and multiparameter persistence – and their applications to different types of data, like point clouds, triangulations, or graph data. Other important topics covered include discrete Morse theory, the Mapper structure, optimal generating cycles, as well as recent advances in embedding TDA within machine learning frameworks.


Epidemic Modelling

Epidemic Modelling

Author: D. J. Daley

Publisher: Cambridge University Press

Published: 1999-04-13

Total Pages: 160

ISBN-13: 9780521640794

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This is a general introduction to the mathematical modelling of diseases.


Combinatorics: The Rota Way

Combinatorics: The Rota Way

Author: Joseph P. S. Kung

Publisher: Cambridge University Press

Published: 2009-02-09

Total Pages: 397

ISBN-13: 1139476769

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Gian-Carlo Rota was one of the most original and colourful mathematicians of the 20th century. His work on the foundations of combinatorics focused on the algebraic structures that lie behind diverse combinatorial areas, and created a new area of algebraic combinatorics. Written by two of his former students, this book is based on notes from his influential graduate courses and on face-to-face discussions. Topics include sets and valuations, partially ordered sets, distributive lattices, partitions and entropy, matching theory, free matrices, doubly stochastic matrices, Moebius functions, chains and antichains, Sperner theory, commuting equivalence relations and linear lattices, modular and geometric lattices, valuation rings, generating functions, umbral calculus, symmetric functions, Baxter algebras, unimodality of sequences, and location of zeros of polynomials. Many exercises and research problems are included, and unexplored areas of possible research are discussed. A must-have for all students and researchers in combinatorics and related areas.


The Theory of Composites

The Theory of Composites

Author: Graeme W. Milton

Publisher: SIAM

Published: 2022-12-07

Total Pages: 761

ISBN-13: 1611977487

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Composites have been studied for more than 150 years, and interest in their properties has been growing. This classic volume provides the foundations for understanding a broad range of composite properties, including electrical, magnetic, electromagnetic, elastic and viscoelastic, piezoelectric, thermal, fluid flow through porous materials, thermoelectric, pyroelectric, magnetoelectric, and conduction in the presence of a magnetic field (Hall effect). Exact solutions of the PDEs in model geometries provide one avenue of understanding composites; other avenues include microstructure-independent exact relations satisfied by effective moduli, for which the general theory is reviewed; approximation formulae for effective moduli; and series expansions for the fields and effective moduli that are the basis of numerical methods for computing these fields and moduli. The range of properties that composites can exhibit can be explored either through the model geometries or through microstructure-independent bounds on the properties. These bounds are obtained through variational principles, analytic methods, and Hilbert space approaches. Most interesting is when the properties of the composite are unlike those of the constituent materials, and there has been an explosion of interest in such composites, now known as metamaterials. The Theory of Composites surveys these aspects, among others, and complements the new body of literature that has emerged since the book was written. It remains relevant today by providing historical background, a compendium of numerous results, and through elucidating many of the tools still used today in the analysis of composite properties. This book is intended for applied mathematicians, physicists, and electrical and mechanical engineers. It will also be of interest to graduate students.


Number and Letter Puzzles

Number and Letter Puzzles

Author: Des Machale

Publisher: Lulu.com

Published: 2019-11-03

Total Pages: 108

ISBN-13: 9780244231002

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One day many years ago a student came up to me and said, `I bet you do not know what ""8 S on an SS"" stands for?' I didn't, and it took me several days to work it out. But I did, on my own, and experienced the thrill every puzzle solver feels when the moment of revelation occurs. Immediately, I began to collect and manufacture them myself. This book contains the biggest assembly of these puzzles ever published, graded from very easy to the fiendishly difficult, with one word clues to encourage people who need a little help. The other type of puzzles in this book are of the ""What Comes Next?"" variety --- you are given a sequence of usually six letters or numbers and asked what you think the next term should be. These puzzles are immensely popular with all ages, genders, occupations, and nationalities. They can help to develop intelligence, general knowledge, concentration, and lateral thinking, and can be used in family, classroom, and community games and activities.