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Many problems in science and engineering involve the solution of differential equations or systems. One of most successful methods of solving nonlinear equations is the determination of critical points of corresponding functionals. The study of critical points has grown rapidly in recent years and has led to new applications in other scientific disciplines. This monograph continues this theme and studies new results discovered since the author's preceding book entitled Linking Methods in Critical Point Theory. Written in a clear, sequential exposition, topics include semilinear problems, Fucik spectrum, multidimensional nonlinear wave equations, elliptic systems, and sandwich pairs, among others. With numerous examples and applications, this book explains the fundamental importance of minimax systems and describes how linking methods fit into the framework. Minimax Systems and Critical Point Theory is accessible to graduate students with some background in functional analysis, and the new material makes this book a useful reference for researchers and mathematicians. Review of the author's previous Birkhäuser work, Linking Methods in Critical Point Theory: The applications of the abstract theory are to the existence of (nontrivial) weak solutions of semilinear elliptic boundary value problems for partial differential equations, written in the form Au = f(x, u). . . . The author essentially shows how his methods can be applied whenever the nonlinearity has sublinear growth, and the associated functional may increase at a certain rate in every direction of the underlying space. This provides an elementary approach to such problems. . . . A clear overview of the contents of the book is presented in the first chapter, while bibliographical comments and variant results are described in the last one. MathSciNet
Differential equations --- differentiaalvergelijkingen --- Functional analysis --- Partial differential equations --- functies (wiskunde) --- Critical point theory (Mathematical analysis) --- Chebyshev approximation --- Maxima and minima --- Point critique, Théorie du (Analyse mathématique) --- Tchebychev, Approximation de --- Maxima et minima --- EPUB-LIV-FT LIVMATHE LIVSTATI SPRINGER-B
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Many nonlinear problems in physics, engineering, biology, and social sciences can be reduced to finding critical points of functionals. While minimax and Morse theories provide answers to many situations and problems on the existence of multiple critical points of a functional, they often cannot provide much-needed additional properties of these critical points. Sign-changing critical point theory has emerged as a new area of rich research on critical points of a differentiable functional with important applications to nonlinear elliptic PDEs. Key features of this book: * Self-contained in-depth treatment of sign-changing critical point theory * Further explorations in minimax and Morse theories * Topics devoted to linking and nodal solutions, the sign-changing saddle point theory, the generalized Brezis–Nirenberg critical point theorem, the parameter dependence of sign-changing critical points * Applications of sign-changing critical point theory studied within the classical symmetric mountain pass theorem *Applies sign-changing concepts to Schrödinger equations and boundary value problems This book is intended for advanced graduate students and researchers involved in sign-changing critical point theory, PDEs, global analysis, and nonlinear functional analysis. Also by the author: (with Martin Schechter) Critical Point Theory and Its Applications, ©2006, Springer, ISBN: 978-0-387-32965-9.
Mathematics. --- Approximations and Expansions. --- Topology. --- Functional Analysis. --- Partial Differential Equations. --- Calculus of Variations and Optimal Control; Optimization. --- Global Analysis and Analysis on Manifolds. --- Functional analysis. --- Global analysis. --- Differential equations, partial. --- Mathematical optimization. --- Mathématiques --- Analyse fonctionnelle --- Optimisation mathématique --- Topologie --- Critical point theory (Mathematical analysis). --- Mathematical analysis. --- Critical point theory (Mathematical analysis) --- Mathematics --- Physical Sciences & Mathematics --- Geometry --- Global analysis (Mathematics) --- Analysis, Global (Mathematics) --- Approximation theory. --- Global analysis (Mathematics). --- Manifolds (Mathematics). --- Partial differential equations. --- Calculus of variations. --- Differential topology --- Functions of complex variables --- Geometry, Algebraic --- Calculus of variations --- Math --- Science --- Analysis situs --- Position analysis --- Rubber-sheet geometry --- Polyhedra --- Set theory --- Algebras, Linear --- Functional calculus --- Functional equations --- Integral equations --- Partial differential equations --- Optimization (Mathematics) --- Optimization techniques --- Optimization theory --- Systems optimization --- Mathematical analysis --- Maxima and minima --- Operations research --- Simulation methods --- System analysis --- Theory of approximation --- Functional analysis --- Functions --- Polynomials --- Chebyshev systems --- Isoperimetrical problems --- Variations, Calculus of --- Geometry, Differential --- Topology
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The phase behaviour of materials and their thermodynamic properties are a central subject in all fields of materials research. The first Volume of the work, meant for graduate students in chemistry, geology, physics, and metallurgy, and their engineering counterparts, is split up in three levels, such that from level to level the portion and importance of thermodynamics and mathematics are increased. In the ground level it is shown that the basic principles of phase equilibria can be understood without the use of thermodynamics – be it that the concept of chemical potential is introduced right from the beginning. The intermediate level is an introduction to thermodynamics; culminating in the Gibbs energy as the arbiter for equilibrium – demonstrated for systems where the phases in equilibrium are pure substances. In the third level the accent is on binary systems, where one or more phases are solutions of the components. Explicit relationships between the variables are derived for equilibria involving ideal mixtures and ideal dilute solutions. Non-ideal systems are treated from three different angles – geometrically, analytically, and numerically. Throughout the work high priority is given to the thermodynamic assessment of experimental data; numerous end-of-chapter exercises and their solutions are included. The work is useful for scientists as an introduction and a reference book. Audience: Students, teachers, and scientists in chemistry, chemical engineering, geology and geophysics, metallurgy, and related branches of materials science.
Phase rule and equilibrium. --- Thermodynamics. --- Chemistry, Physical and theoretical --- Dynamics --- Mechanics --- Physics --- Heat --- Heat-engines --- Quantum theory --- Critical phenomena (Physics) --- Equilibrium --- Chemical equilibrium --- Chemical systems --- Critical point --- Chemistry, Physical organic. --- Materials. --- Geology. --- Physical geography. --- Physical Chemistry. --- Materials Science, general. --- Geophysics/Geodesy. --- Geography --- Geognosy --- Geoscience --- Earth sciences --- Natural history --- Engineering --- Engineering materials --- Industrial materials --- Engineering design --- Manufacturing processes --- Chemistry, Physical organic --- Chemistry, Organic --- Materials --- Physical chemistry. --- Materials science. --- Geophysics. --- Geological physics --- Terrestrial physics --- Material science --- Physical sciences --- Chemistry, Theoretical --- Physical chemistry --- Theoretical chemistry --- Chemistry
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This book gives for the first time a self-contained and unified approach to holomorphic Morse inequalities and the asymptotic expansion of the Bergman kernel on manifolds by using the heat kernel, and presents also various applications. The main analytic tool is the analytic localization technique in local index theory developed by Bismut-Lebeau. The book includes the most recent results in the field and therefore opens perspectives on several active areas of research in complex, Kähler and symplectic geometry. A large number of applications are included, e.g., an analytic proof of the Kodaira embedding theorem, a solution of the Grauert-Riemenschneider and Shiffman conjectures, a compactification of complete Kähler manifolds of pinched negative curvature, the Berezin-Toeplitz quantization, weak Lefschetz theorems, and the asymptotics of the Ray-Singer analytic torsion.
Bergman kernel functions. --- Holomorphic functions. --- Morse theory. --- Symplectic manifolds. --- Variational inequalities (Mathematics) --- Inequalities, Variational (Mathematics) --- Calculus of variations --- Differential inequalities --- Functions, Holomorphic --- Functions of several complex variables --- Kernel functions, Bergman --- Holomorphic mappings --- Kernel functions --- Manifolds, Symplectic --- Geometry, Differential --- Manifolds (Mathematics) --- Critical point theory (Mathematical analysis) --- Morse, théorie de --- Inégalités variationnelles --- Fonctions holomorphes --- Variétés symplectiques --- EPUB-LIV-FT SPRINGER-B LIVMATHE --- Global differential geometry. --- Differential equations, partial. --- Global analysis. --- Differential Geometry. --- Several Complex Variables and Analytic Spaces. --- Global Analysis and Analysis on Manifolds. --- Global analysis (Mathematics) --- Partial differential equations --- Analysis, Global (Mathematics) --- Differential topology --- Functions of complex variables --- Geometry, Algebraic --- Differential geometry. --- Functions of complex variables. --- Global analysis (Mathematics). --- Manifolds (Mathematics). --- Complex variables --- Elliptic functions --- Functions of real variables --- Topology --- Differential geometry
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