Accession Number : AD0705075

Title :   COERCIVENESS INEQUALITIES FOR NONELLIPTIC SYSTEMS OF PARTIAL DIFFERENTIAL EQUATIONS.

Descriptive Note : Technical summary rept.,

Corporate Author : DENVER RESEARCH INST COLO DIV OF MATHEMATICAL SCIENCES

Personal Author(s) : Schulenberger,John R. ; Wilcox,Calvin H.

Report Date : MAR 1970

Pagination or Media Count : 129

Abstract : The paper deals with first-order matrix partial differential operators of the form L = (-i) Summation, j = 1 to j = n, of ((L sub j)(x)(D sub j)) + L sub 0 (x) where x = (x sub 1, ..., x sub n)epsilon(R superscript n), D sub j = the partial dreivative with respect to j, and the L sub j (x), j = 0, 1, 2,..., n, are m' x m matrix-valued functions of x.

Descriptors :   (*OPERATORS(MATHEMATICS), HILBERT SPACE), (*PARTIAL DIFFERENTIAL EQUATIONS, WAVE PROPAGATION), INEQUALITIES, ELECTROMAGNETIC RADIATION, SOUND TRANSMISSION, MECHANICAL WAVES, ELASTIC PROPERTIES, MATRICES(MATHEMATICS), PERTURBATION THEORY, THEOREMS

Subject Categories : Theoretical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE