REFLECTION OF BIHARMONIC FUNCTIONS ACROSS ANALYTIC BOUNDARY CONDITIONS

Abstract

The reflection of solutions of a biharmonic equation across an analytic arc satisfies two analytic boundary conditions. More specifically but without stating all hypotheses, if a biharmonic function is given on a simply connected open set, partially bounded by an analytic arc (without end points), and satisfies two analytic boundary conditions, then there exists a simply connected region containing the analytic arc in its interior, and a unique function biharmonic on this region, which agrees with the biharmonic function. There are two cases treated. In the first case, linear boundary conditions with analytic coefficients are given and a condition on the coefficients is stated. In the second case, nonlinear boundary conditions are given, and a condition is stated, which when satisfied, permits reflection locally. The conditions in the linear case will cover, among other things, the boundary conditions of the first and second fundamental boundary value problems of elasticity as well as the fundamental mixed boundary value problems in elasticity. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1961
Accession Number
AD0272698

Entities

People

  • James M. Sloss

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Biharmonic Functions
  • Boundaries
  • Boundary Value Problems
  • Coefficients
  • Differential Equations
  • Elastic Properties
  • Equations
  • Hypotheses
  • Mathematics
  • Reflection

Fields of Study

  • Mathematics
  • Philosophy

Readers

  • Educational Psychology
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)