One-parameter Semigroups of Positive Operators

One-parameter Semigroups of Positive Operators PDF Author: Wolfgang Arendt
Publisher: Springer
ISBN: 3540397914
Category : Mathematics
Languages : en
Pages : 468

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One-parameter Semigroups of Positive Operators

One-parameter Semigroups of Positive Operators PDF Author: Wolfgang Arendt
Publisher: Springer
ISBN: 3540397914
Category : Mathematics
Languages : en
Pages : 468

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Book Description


Positive Operator Semigroups

Positive Operator Semigroups PDF Author: András Bátkai
Publisher: Birkhäuser
ISBN: 3319428136
Category : Mathematics
Languages : en
Pages : 364

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Book Description
This book gives a gentle but up-to-date introduction into the theory of operator semigroups (or linear dynamical systems), which can be used with great success to describe the dynamics of complicated phenomena arising in many applications. Positivity is a property which naturally appears in physical, chemical, biological or economic processes. It adds a beautiful and far reaching mathematical structure to the dynamical systems and operators describing these processes. In the first part, the finite dimensional theory in a coordinate-free way is developed, which is difficult to find in literature. This is a good opportunity to present the main ideas of the Perron-Frobenius theory in a way which can be used in the infinite dimensional situation. Applications to graph matrices, age structured population models and economic models are discussed. The infinite dimensional theory of positive operator semigroups with their spectral and asymptotic theory is developed in the second part. Recent applications illustrate the theory, like population equations, neutron transport theory, delay equations or flows in networks. Each chapter is accompanied by a large set of exercises. An up-to-date bibliography and a detailed subject index help the interested reader. The book is intended primarily for graduate and master students. The finite dimensional part, however, can be followed by an advanced bachelor with a solid knowledge of linear algebra and calculus.

Positive Semigroups of Operators, and Applications

Positive Semigroups of Operators, and Applications PDF Author: O. Bratteli
Publisher: Springer Science & Business Media
ISBN: 9400964846
Category : Mathematics
Languages : en
Pages : 200

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Book Description
This means that semigroup theory may be applied directly to the study of the equation I'!.f = h on M. In [45] Yau proves that, for h ~ 0, there are no nonconstant, nonnegative solutions f in [j' for 1

Semigroups of Linear Operators

Semigroups of Linear Operators PDF Author: David Applebaum
Publisher: Cambridge University Press
ISBN: 1108623522
Category : Mathematics
Languages : en
Pages : 235

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Book Description
The theory of semigroups of operators is one of the most important themes in modern analysis. Not only does it have great intellectual beauty, but also wide-ranging applications. In this book the author first presents the essential elements of the theory, introducing the notions of semigroup, generator and resolvent, and establishes the key theorems of Hille–Yosida and Lumer–Phillips that give conditions for a linear operator to generate a semigroup. He then presents a mixture of applications and further developments of the theory. This includes a description of how semigroups are used to solve parabolic partial differential equations, applications to Levy and Feller–Markov processes, Koopmanism in relation to dynamical systems, quantum dynamical semigroups, and applications to generalisations of the Riemann–Liouville fractional integral. Along the way the reader encounters several important ideas in modern analysis including Sobolev spaces, pseudo-differential operators and the Nash inequality.

A Short Course on Operator Semigroups

A Short Course on Operator Semigroups PDF Author: Klaus-Jochen Engel
Publisher: Springer Science & Business Media
ISBN: 0387313419
Category : Mathematics
Languages : en
Pages : 257

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Book Description
The book offers a direct and up-to-date introduction to the theory of one-parameter semigroups of linear operators on Banach spaces. The book is intended for students and researchers who want to become acquainted with the concept of semigroups.

The Asymptotic Behaviour of Semigroups of Linear Operators

The Asymptotic Behaviour of Semigroups of Linear Operators PDF Author: Jan van Neerven
Publisher: Birkhäuser
ISBN: 3034892063
Category : Mathematics
Languages : en
Pages : 247

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Book Description
This book presents a systematic account of the theory of asymptotic behaviour of semigroups of linear operators acting in a Banach space. The focus is on the relationship between asymptotic behaviour of the semigroup and spectral properties of its infinitesimal generator. The most recent developments in the field are included, such as the Arendt-Batty-Lyubich-Vu theorem, the spectral mapp- ing theorem of Latushkin and Montgomery-Smith, Weis's theorem on stability of positive semigroup in Lp-spaces, the stability theorem for semigroups whose resolvent is bounded in a half-plane, and a systematic theory of individual stability. Addressed to researchers and graduate students with interest in the fields of operator semigroups and evolution equations, this book is self-contained and provides complete proofs.

Observation and Control for Operator Semigroups

Observation and Control for Operator Semigroups PDF Author: Marius Tucsnak
Publisher: Springer Science & Business Media
ISBN: 3764389931
Category : Mathematics
Languages : en
Pages : 488

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Book Description
This book studies observation and control operators for linear systems where the free evolution of the state can be described by an operator semigroup on a Hilbert space. It includes a large number of examples coming mostly from partial differential equations.

Positive Operators and Semigroups on Banach Lattices

Positive Operators and Semigroups on Banach Lattices PDF Author: C.B. Huijsmans
Publisher: Springer Science & Business Media
ISBN: 940172721X
Category : Mathematics
Languages : en
Pages : 151

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Book Description
During the last twenty-five years, the development of the theory of Banach lattices has stimulated new directions of research in the theory of positive operators and the theory of semigroups of positive operators. In particular, the recent investigations in the structure of the lattice ordered (Banach) algebra of the order bounded operators of a Banach lattice have led to many important results in the spectral theory of positive operators. The contributions contained in this volume were presented as lectures at a conference organized by the Caribbean Mathematics Foundation, and provide an overview of the present state of development of various areas of the theory of positive operators and their spectral properties. This book will be of interest to analysts whose work involves positive matrices and positive operators.

semigroup theory and applications

semigroup theory and applications PDF Author: Phillipe Clement
Publisher: CRC Press
ISBN: 1000111121
Category : Mathematics
Languages : en
Pages : 473

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Book Description
This book contains articles on maximal regulatory problems, interpolation spaces, multiplicative perturbations of generators, linear and nonlinear evolution equations, integrodifferential equations, dual semigroups, positive semigroups, applications to control theory, and boundary value problems.

Perturbations of Positive Semigroups with Applications

Perturbations of Positive Semigroups with Applications PDF Author: Jacek Banasiak
Publisher: Springer Science & Business Media
ISBN: 1846281539
Category : Mathematics
Languages : en
Pages : 443

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Book Description
This book deals mainly with modelling systems that change with time. The evolution equations that it describes can be found in a number of application areas, such as kinetics, fragmentation theory and mathematical biology. This will be the first self-contained account of the area.