BOUNDARY PROBLEMS AND EIGENVALUES OF THE GENERALIZED BIHARMONIC EQUATION,

Abstract

The solution of boundary value and eigenvalue problems for a generalized biharmonic equation is analyzed utilizing the P-transformation methods developed by G. N. Polozhii. Two kinds of boundary conditions are defined and five cases are distinguished. The five cases are: (1) on one side of a rectangle the boundary conditions of the first kind are satisfied and on the other sides the boundary conditions of the second kind are satisfied; (2) on two opposite sides the boundary conditions of the first kind and on the other sides the boundary conditions of the second kind are satisfied; (3) on two adjacent sides the boundary conditions of the first kind, and on the other sides the boundary conditions of the second kind are satisfied; (4) on three sides the boundary conditions of the first kind and on one side the boundary conditions of the second kind are satisfied; (5) on all sides the boundary conditions of the first kind are satisfied. The formula of summary representations, written in the scaler form, establishes the basis for solving the boundary-value and eigenvalue problems for all five cases of boundary conditions.

Document Details

Document Type
Technical Report
Publication Date
Jan 31, 1969
Accession Number
AD0687012

Entities

People

  • B. N. Bublik
  • G. N. Polozhii

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Differential Equations
  • Eigenvalues
  • Equations

Fields of Study

  • Mathematics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Dynamics.
  • Linear Algebra