
Accession Number : ADA180953
Title : Boundary Controllability of Maxwell's Equations in a Spherical Region.
Descriptive Note : Technical summary rept.,
Corporate Author : WISCONSIN UNIVMADISON MATHEMATICS RESEARCH CENTER
Personal Author(s) : Kime,Katherine A.
Report Date : FEB 1987
Pagination or Media Count : 39
Abstract : This paper examines the question of control of electromagnetic fields in a three dimensional spherical region by means of control currents on the boundary of that region. Results of this type are significant in connection with the theory of waveguides, electromagnetic pulse devices, and stealth technology, as well as being of independent mathematical interest. The necessary theory of divergencefree solutions of the vector wave equation is developed. By use of eigenfunctions of the vector Laplacian in appropriate divergencefree domains and moment problem techniques, sufficient conditions for controllability are set forth.
Descriptors : *BOUNDARIES, *CONTROL, *ELECTROMAGNETIC FIELDS, *MAXWELLS EQUATIONS, *ELECTRIC CURRENT, ELECTROMAGNETIC PULSES, ELECTROMAGNETIC RADIATION, MAGNETIC DEVICES, MOMENTS, VECTOR ANALYSIS, WAVE EQUATIONS, EIGENVECTORS, THEORY, WAVEGUIDES, LAPLACE TRANSFORMATION, BOUNDARY VALUE PROBLEMS, HILBERT SPACE
Subject Categories : Electricity and Magnetism
Distribution Statement : APPROVED FOR PUBLIC RELEASE