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Mathematics - Dynamical Systems & Differential Equations | Potential Theory

Potential Theory

Series: Universitext

Helms, Lester L.

2nd ed. 2014, XIV, 485 p. 2 illus.

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  • Shows how solutions are morphed into local solutions on regions with curved boundaries
  • Discusses the connection between potential theory and Brownian motion
  • Introduces all the important concepts of classical potential theory
  • Equips readers for further study in elliptic partial differential equations, axiomatic potential theory and the interplay between probability theory and potential theory

Potential Theory presents a clear path from calculus to classical potential theory and beyond, with the aim of moving the reader into the area of mathematical research as quickly as possible. The subject matter is developed from first principles using only calculus. Commencing with the inverse square law for gravitational and electromagnetic forces and the divergence theorem, the author develops methods for constructing solutions of Laplace's equation on a region with prescribed values on the boundary of the region.

The latter half of the book addresses more advanced material aimed at those with the background of a senior undergraduate or beginning graduate course in real analysis. Starting with solutions of the Dirichlet problem subject to mixed boundary conditions on the simplest of regions, methods of morphing such solutions onto solutions of Poisson's equation on more general regions are developed using diffeomorphisms and the Perron-Wiener-Brelot method, culminating in application to Brownian motion.

In this new edition, many exercises have been added to reconnect the subject matter to the physical sciences. This book will undoubtedly be useful to graduate students and researchers in mathematics, physics, and engineering.

Content Level » Graduate

Keywords » Absorbing Boundary - Barrier - Brelot - Brownian Motion - Caauchy Initial Value Problem - Capacity - Cartan's Energy Principle - Choquet - Dirichlet Problem - Fine Topology - Gauss' Integral - Green Function - Greenian Set - Harmonic Function - Harmonic Measure - Irregular Boundary Point - Kelvin Tranformation - Method of Images - Neumann Problem - Newtonian Potential - Perron-Wiener-Brelot Method - Poisson Integral Formula - Poisson's Equation - Reflecting Boundary - Reflection Principle - Regular Boundary Point - Subnewtonian Kernel - Wiener's Test - Zaremba Cone Condition

Related subjects » Analysis - Dynamical Systems & Differential Equations - Probability Theory and Stochastic Processes

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