Abstract
The term potential theory comes from 19th century physics, where the fundamental forces like gravity or electrostatic forces were described as the gradients of potentials, i.e. functions which satisfy the Laplace equation. Hence potential theory was the study of solutions of the Laplace equation. Nowadays the fundamental forces in physics are described by systems of non-linear partial differential equations such as the Einstein equations and the Yang-Mills equations, and the Laplace equation arises only as a limiting case. Nevertheless, the Laplace equation is still used in applications in many areas of physics and engineering like heat conduction and electrostatics. And the term “potential theory” has survived as a convenient label for the theory of functions satisfying the Laplace equation, i.e. so-called harmonic functions.
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© 2008 Springer-Verlag Berlin Heidelberg
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(2008). Introduction. In: Franz, U., Schürmann, M. (eds) Quantum Potential Theory. Lecture Notes in Mathematics, vol 1954. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69365-9_1
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DOI: https://doi.org/10.1007/978-3-540-69365-9_1
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-69364-2
Online ISBN: 978-3-540-69365-9
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