Wedges I View Full Text


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Article Info

DATE

1986-04

AUTHORS

Cécile DeWitt-Morette, Stephen G. Low, Lawrence S. Schulman, Anwar Y. Shiekh

ABSTRACT

The wedge problem, that is, the propagation of radiation or particles in the presence of a wedge, is examined in different contexts. Generally, the paper follows the historical order from Sommerfeld's early work to recent stochastic results—hindsights and new results being woven in as appropriate. In each context, identifying the relevant mathematical problem has been the key to the solution. Thus each section can be given both a physics and a mathematics title: Section 2: diffraction by reflecting wedge; boundary value problem of differential equations; solutions defined on mutiply connected spaces. Section 3: geometrical theory of diffraction; identificiation of function spaces. Section 4: path integral solutions; path integration on multiply connected spaces; asymptotics on the boundaries of function spaces. Section 5: probing the shape of the wedge and the roughness of its surface; stochastic calculus. Several propagators and Green functions are given explicitly, some old ones and some new ones. They include the knife-edge propagator for Dirichlet and Neumann boundary conditions, the absorbing knife edge propagator, the wedge propagators, the propagator for a free particle on a μ-sheeted Riemann surface, the Dirichlet and the Neumann wedge Green function. More... »

PAGES

311-349

References to SciGraph publications

  • 1968. Continuum Integrals and the Asymptotic Behavior of the Solutions of Parabolic Equations as t→0. Applications to Diffraction in SPECTRAL THEORY AND PROBLEMS IN DIFFRACTION
  • 1984. Feynman Path Integrals in STOCHASTIC METHODS AND COMPUTER TECHNIQUES IN QUANTUM DYNAMICS
  • 1984. The Knife Edge Problem in STOCHASTIC METHODS AND COMPUTER TECHNIQUES IN QUANTUM DYNAMICS
  • 1976. Propagation and diffraction of transient fields in non-dispersive and dispersive media in TRANSIENT ELECTROMAGNETIC FIELDS
  • 1972-10. Feynman's path integral in COMMUNICATIONS IN MATHEMATICAL PHYSICS
  • 1896-06. Mathematische Theorie der Diffraction in MATHEMATISCHE ANNALEN
  • 1976. Transient Electromagnetic Fields in NONE
  • 1975. The geometrical theory of diffraction and its application in NUMERICAL AND ASYMPTOTIC TECHNIQUES IN ELECTROMAGNETICS
  • 1974-03. Feynman path integrals in COMMUNICATIONS IN MATHEMATICAL PHYSICS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf01882691

    DOI

    http://dx.doi.org/10.1007/bf01882691

    DIMENSIONS

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