This book is a self-contained account of knowledge of the theory of nonlinear superposition operators: a generalization of the notion of functions. The theory developed here is applicable to operators in a wide variety of function spaces, and it is here that the modern theory diverges from classical nonlinear analysis. The purpose of this book is to collect the basic facts about the superposition operator, to present the main ideas which are useful in studying its properties and to provide a comparison of its behaviour in different function spaces. Some applications are also considered, for example to control theory and optimization. Much of the work here has only appeared before in research literature, which itself is catalogued in detail here.

Nonlinear Superposition Operators (Cambridge Tracts in Mathematics, Series Number 95)

Science & Math

Appell, Jürgen

Mathematics

Cambridge University Press

Zabrejko, Petr P.

The aim of this monograph is to give a thorough and self-contained account of functions of (generalized) bounded variation, the methods connected with their study, their relations to other important function classes, and their applications to various problems arising in Fourier analysis and nonlinear analysis. In the first part the basic facts about spaces of functions of bounded variation and related spaces are collected, the main ideas which are useful in studying their properties are presented, and a comparison of their importance and suitability for applications is provided, with a particular emphasis on illustrative examples and counterexamples. The second part is concerned with (sometimes quite surprising) properties of nonlinear composition and superposition operators in such spaces. Moreover, relations with Riemann-Stieltjes integrals, convergence tests for Fourier series, and applications to nonlinear integral equations are discussed. The only prerequisite for understanding this book is a modest background in real analysis, functional analysis, and operator theory. It is addressed to non-specialists who want to get an idea of the development of the theory and its applications in the last decades, as well as a glimpse of the diversity of the directions in which current research is moving. Since the authors try to take into account recent results and state several open problems, this book might also be a fruitful source of inspiration for further research.

Bounded Variation and Around (De Gruyter Series in Nonlinear Analysis and Applications, 17)

Banás, Jozef

Merentes Díaz, Nelson José

de Gruyter

The authors present a completely new and highly application-oriented field of nonlinear analysis. The work covers the theory of non-smooth input-output systems and presents various methods to non-standard applications in mathematics and physics. A particular focus lies on hysteresis and relay phenomena, electric circuits with diode nonlinearities, and biological systems with constraints.

Systems with Non-Smooth Inputs: Mathematical Models of Hysteresis Phenomena, Biological Systems, and Electric Circuits

Thi Hien, Nguyen

Petrova, Lyubov

Pryadko, Irina

Walter de Gruyter

Das Buch führt in die Theorie der reellen Funktionen einer und mehrerer Variablen ein. Im Vordergrund stehen weniger abstrakte Ergebnisse als vielmehr die zahlreichen Beispiele und Gegenbeispiele, anhand derer die Bedeutung mathematischer Sätze deutlich gemacht wird. Kapitel 1 - 3 sind den wesentlichen Ergebnissen über stetige, differenzierbare und integrierbare Funktionen gewidmet, Kapitel 4 geht mit ,,merkwürdigen" Teilmengen der reellen Achse etwas über den üblichen Stoff hinaus. Funktionen mehrerer Variablen werden in Kapitel 5 bzw. 6 behandelt.

Analysis in Beispielen und Gegenbeispielen: Eine Einführung in die Theorie reeller Funktionen (German Edition)

Springer Spektrum

(Autor) Jürgen Appell / Kristina Appell (Titel) Mengen - Zahlen - Zahlbereiche (Untertitel) Eine elementare Einführung in die Mathematik (HL) Mathematik für Erstsemester im Lehramt (USP) beispielorientierter Aufbau Vielzahl von Lösungsaufgaben inkl. Lösungshinweisen (copy) Das Buch dient nicht nur der Einführung der wichtigsten Zahlbereiche von den natürlichen bis zu den komplexen Zahlen und darüber hinaus, sondern behandelt auch ausführlich den in der Mahtmatik fundamentalen Mengen- und Funktionsbegriff. Zudem können SIe sich schon an Begriffe und Techniken gewöhnen, di ein den beiden mathematischen Grundvorlesungen Analysis und Lineare Algebra zentral sind. Ein besonderes Merkmal ist die Vielzahl der Beispiele und Gegenbeispiele an Hand derer neue BEgriffe eingeführt werden. Darüberhinaus enthält das Buch ein Kapitel mit etwa 300 Übungsaufgaben. (Biblio) 2005.256 S. kart. ' 20, - / sFr 32, - ISBN 3-8274-1660-4 (Störer) neu!

Mengen - Zahlen - Zahlbereiche: Eine elementare Einführung in die Mathematik (Mathematik Primarstufe und Sekundarstufe I + II) (German Edition)

Appell, Kristina

Spektrum Akademischer Verlag

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