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An Introduction To Viscosity Solutions for Fully Nonlinear PDE with Applications to Calculus of Variations in L∞

2014-11-26 Mathematics
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Release : 2014-11-26
Genre : Mathematics
Kind : eBook
Book Rating : 299/5 ( reviews)

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Book Synopsis An Introduction To Viscosity Solutions for Fully Nonlinear PDE with Applications to Calculus of Variations in L∞ by : Nikos Katzourakis

Download or read book An Introduction To Viscosity Solutions for Fully Nonlinear PDE with Applications to Calculus of Variations in L∞ written by Nikos Katzourakis. This book was released on 2014-11-26. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to give a quick and elementary, yet rigorous, presentation of the rudiments of the so-called theory of Viscosity Solutions which applies to fully nonlinear 1st and 2nd order Partial Differential Equations (PDE). For such equations, particularly for 2nd order ones, solutions generally are non-smooth and standard approaches in order to define a "weak solution" do not apply: classical, strong almost everywhere, weak, measure-valued and distributional solutions either do not exist or may not even be defined. The main reason for the latter failure is that, the standard idea of using "integration-by-parts" in order to pass derivatives to smooth test functions by duality, is not available for non-divergence structure PDE.

Sobolev and Viscosity Solutions for Fully Nonlinear Elliptic and Parabolic Equations

2018-09-07 Mathematics
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Release : 2018-09-07
Genre : Mathematics
Kind : eBook
Book Rating : 401/5 ( reviews)

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Book Synopsis Sobolev and Viscosity Solutions for Fully Nonlinear Elliptic and Parabolic Equations by : N. V. Krylov

Download or read book Sobolev and Viscosity Solutions for Fully Nonlinear Elliptic and Parabolic Equations written by N. V. Krylov. This book was released on 2018-09-07. Available in PDF, EPUB and Kindle. Book excerpt: This book concentrates on first boundary-value problems for fully nonlinear second-order uniformly elliptic and parabolic equations with discontinuous coefficients. We look for solutions in Sobolev classes, local or global, or for viscosity solutions. Most of the auxiliary results, such as Aleksandrov's elliptic and parabolic estimates, the Krylov–Safonov and the Evans–Krylov theorems, are taken from old sources, and the main results were obtained in the last few years. Presentation of these results is based on a generalization of the Fefferman–Stein theorem, on Fang-Hua Lin's like estimates, and on the so-called “ersatz” existence theorems, saying that one can slightly modify “any” equation and get a “cut-off” equation that has solutions with bounded derivatives. These theorems allow us to prove the solvability in Sobolev classes for equations that are quite far from the ones which are convex or concave with respect to the Hessians of the unknown functions. In studying viscosity solutions, these theorems also allow us to deal with classical approximating solutions, thus avoiding sometimes heavy constructions from the usual theory of viscosity solutions.

Notes on Tug-of-War Games and the p-Laplace Equation

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Kind : eBook
Book Rating : 793/5 ( reviews)

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Book Synopsis Notes on Tug-of-War Games and the p-Laplace Equation by : Mikko Parviainen

Download or read book Notes on Tug-of-War Games and the p-Laplace Equation written by Mikko Parviainen. This book was released on . Available in PDF, EPUB and Kindle. Book excerpt:

Game Theory and Partial Differential Equations

2019-07-22 Mathematics
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Release : 2019-07-22
Genre : Mathematics
Kind : eBook
Book Rating : 797/5 ( reviews)

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Book Synopsis Game Theory and Partial Differential Equations by : Pablo Blanc

Download or read book Game Theory and Partial Differential Equations written by Pablo Blanc. This book was released on 2019-07-22. Available in PDF, EPUB and Kindle. Book excerpt: Extending the well-known connection between classical linear potential theory and probability theory (through the interplay between harmonic functions and martingales) to the nonlinear case of tug-of-war games and their related partial differential equations, this unique book collects several results in this direction and puts them in an elementary perspective in a lucid and self-contained fashion.

An Illustrative Introduction to Modern Analysis

2018-01-02 Mathematics
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Release : 2018-01-02
Genre : Mathematics
Kind : eBook
Book Rating : 329/5 ( reviews)

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Book Synopsis An Illustrative Introduction to Modern Analysis by : Nikolaos Katzourakis

Download or read book An Illustrative Introduction to Modern Analysis written by Nikolaos Katzourakis. This book was released on 2018-01-02. Available in PDF, EPUB and Kindle. Book excerpt: Aimed primarily at undergraduate level university students, An Illustrative Introduction to Modern Analysis provides an accessible and lucid contemporary account of the fundamental principles of Mathematical Analysis. The themes treated include Metric Spaces, General Topology, Continuity, Completeness, Compactness, Measure Theory, Integration, Lebesgue Spaces, Hilbert Spaces, Banach Spaces, Linear Operators, Weak and Weak* Topologies. Suitable both for classroom use and independent reading, this book is ideal preparation for further study in research areas where a broad mathematical toolbox is required.

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