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The book contains a unitary and systematic presentation of both classical and very recent parts of a fundamental branch of functional analysis: linear semigroup theory with main emphasis on examples and applications. There are several specialized, but quite interesting, topics which didn't find their place into a monograph till now, mainly because they are very new. So, the book, although containing the main parts of the classical theory of Co-semigroups, as the Hille-Yosida theory, includes also several very new results, as for instance those referring to various classes of semigr
Semigroups of operators. --- Operators, Semigroups of --- Operator theory
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This book presents a detailed and contemporary account of the classical theory of convergence of semigroups and its more recent development treating the case where the limit semigroup, in contrast to the approximating semigroups, acts merely on a subspace of the original Banach space (this is the case, for example, with singular perturbations). The author demonstrates the far-reaching applications of this theory using real examples from various branches of pure and applied mathematics, with a particular emphasis on mathematical biology. The book may serve as a useful reference, containing a significant number of new results ranging from the analysis of fish populations to signaling pathways in living cells. It comprises many short chapters, which allows readers to pick and choose those topics most relevant to them, and it contains 160 end-of-chapter exercises so that readers can test their understanding of the material as they go along.
Operator theory. --- Semigroups of operators. --- Operators, Semigroups of --- Operator theory --- Functional analysis
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Semigroups of operators --- 512.54 --- Operators, Semigroups of --- Operator theory --- 512.54 Groups. Group theory --- Groups. Group theory --- Group theory
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Operator theory --- Product formulas (Operator theory) --- Selfadjoint operators --- Semigroups of operators --- Operators, Semigroups of --- Operators, Selfadjoint --- Self-adjoint operators --- Linear operators --- Formulas, Product --- Selfadjoint operators. --- Semigroups of operators. --- Semigroupes d'opérateurs. --- Opérateurs auto-adjoints.
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In this volume two topics are discussed: the construction of Feller and Lp-sub-Markovian semigroups by starting with a pseudo-differential operator, and the potential theory of these semigroups and their generators. The first part of the text essentially discusses the analysis of pseudo-differential operators with negative definite symbols and develops a symbolic calculus; in addition, it deals with special approaches, such as subordination in the sense of Bochner. The second part handles capacities, function spaces associated with continuous negative definite functions, Lp -sub-Markovian sem
Semigroups of operators. --- Pseudodifferential operators. --- Potential theory (Mathematics) --- Green's operators --- Green's theorem --- Potential functions (Mathematics) --- Potential, Theory of --- Mathematical analysis --- Mechanics --- Operators, Pseudodifferential --- Pseudo-differential operators --- Operator theory --- Operators, Semigroups of
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This book provides a systemic treatment of time-dependent strong Markov processes with values in a Polish space. It describes its generators and the link with stochastic differential equations in infinite dimensions. In a unifying way, where the square gradient operator is employed, new results for backward stochastic differential equations and long-time behavior are discussed in depth. This mathematical material finds its applications in several branches of the scientific world among which mathematical physics, hedging models in financial mathematics, population models.
Markov processes. --- Semigroups of operators. --- Evolution equations. --- Evolutionary equations --- Equations, Evolution --- Equations of evolution --- Differential equations --- Operators, Semigroups of --- Operator theory --- Analysis, Markov --- Chains, Markov --- Markoff processes --- Markov analysis --- Markov chains --- Markov models --- Models, Markov --- Processes, Markov --- Stochastic processes
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The book gives a streamlined and systematic introduction to strongly continuous semigroups of bounded linear operators on Banach spaces. It treats the fundamental Hille-Yosida generation theorem as well as perturbation and approximation theorems for generators and semigroups. The special feature is its treatment of spectral theory leading to a detailed qualitative theory for these semigroups. This theory provides a very efficient tool for the study of linear evolution equations arising as partial differential equations, functional differential equations, stochastic differential equations, and others. Therefore, the book is intended for those wanting to learn and apply functional analytic methods to linear time dependent problems arising in theoretical and numerical analysis, stochastics, physics, biology, and other sciences. It should be of interest to graduate students and researchers in these fields.
Semigroups of operators. --- Linear operators. --- Banach spaces. --- Functions of complex variables --- Generalized spaces --- Topology --- Linear maps --- Maps, Linear --- Operators, Linear --- Operator theory --- Operators, Semigroups of --- Operator theory. --- Global analysis (Mathematics). --- Operator Theory. --- Analysis. --- Analysis, Global (Mathematics) --- Differential topology --- Geometry, Algebraic --- Functional analysis --- Mathematical analysis. --- Analysis (Mathematics). --- 517.1 Mathematical analysis --- Mathematical analysis
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Operator theory --- Ordered algebraic structures --- Evolution equations --- Semigroups of operators --- 517.95 --- Operators, Semigroups of --- Evolutionary equations --- Equations, Evolution --- Equations of evolution --- Differential equations --- Partial differential equations --- Evolution equations. --- Semigroups of operators. --- 517.95 Partial differential equations --- Semigroupes d'opérateurs --- Equations aux derivees partielles --- Equations d'evolution
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This proceedings volume originates from a conference held in Herrnhut in June 2013. It provides unique insights into the power of abstract methods and techniques in dealing successfully with numerous applications stemming from classical analysis and mathematical physics. The book features diverse topics in the area of operator semigroups, including partial differential equations, martingale and Hilbert transforms, Banach and von Neumann algebras, Schrödinger operators, maximal regularity and Fourier multipliers, interpolation, operator-theoretical problems (concerning generation, perturbation and dilation, for example), and various qualitative and quantitative Tauberian theorems with a focus on transfinite induction and magics of Cantor. The last fifteen years have seen the dawn of a new era for semigroup theory with the emphasis on applications of abstract results, often unexpected and far removed from traditional ones. The aim of the conference was to bring together prominent experts in the field of modern semigroup theory, harmonic analysis, complex analysis and mathematical physics, and to present the lively interactions between all of those areas and beyond. In addition, the meeting honored the sixtieth anniversary of Prof C. J. K. Batty, whose scientific achievements are an impressive illustration of the conference goal. These proceedings present contributions by prominent scientists at this international conference, which became a landmark event. They will be a valuable and inspiring source of information for graduate students and established researchers.
Calculus --- Mathematics --- Physical Sciences & Mathematics --- Semigroups of operators. --- Operators, Semigroups of --- Mathematics. --- Functional analysis. --- Operator theory. --- Partial differential equations. --- Mathematical physics. --- Partial Differential Equations. --- Operator Theory. --- Mathematical Applications in the Physical Sciences. --- Functional Analysis. --- Operator theory --- Differential equations, partial. --- Functional analysis --- Partial differential equations --- Functional calculus --- Calculus of variations --- Functional equations --- Integral equations --- Physical mathematics --- Physics
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The theory of operator semigroups was essentially discovered in the early 1930s. Since then, the theory has developed into a rich and exciting area of functional analysis and has been applied to various mathematical topics such as Markov processes, the abstract Cauchy problem, evolution equations, and mathematical physics. This self-contained monograph focuses primarily on the theoretical connection between the theory of operator semigroups and spectral theory. Divided into three parts with a total of twelve distinct chapters, this book gives an in-depth account of the subject with numerous examples, detailed proofs, and a brief look at a few applications. Topics include: * The Hille–Yosida and Lumer–Phillips characterizations of semigroup generators * The Trotter–Kato approximation theorem * Kato’s unified treatment of the exponential formula and the Trotter product formula * The Hille–Phillips perturbation theorem, and Stone’s representation of unitary semigroups * Generalizations of spectral theory’s connection to operator semigroups * A natural generalization of Stone’s spectral integral representation to a Banach space setting With a collection of miscellaneous exercises at the end of the book and an introductory chapter examining the basic theory involved, this monograph is suitable for second-year graduate students interested in operator semigroups.
Semigroups of operators. --- Spectral theory (Mathematics). --- Semigroups of operators --- Spectral theory (Mathematics) --- Calculus --- Mathematics --- Physical Sciences & Mathematics --- Operators, Semigroups of --- Mathematics. --- Algebra. --- Group theory. --- Operator theory. --- Operator Theory. --- Group Theory and Generalizations. --- Functional analysis --- Hilbert space --- Measure theory --- Transformations (Mathematics) --- Operator theory --- Groups, Theory of --- Substitutions (Mathematics) --- Algebra --- Mathematical analysis
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