Differential Equations

, Volume 48, Issue 8, pp 1119–1126

Dirichlet problem in the ball for an equation with a delta-like coefficient

  • A. B. Antonevich
  • D. A. Lyakhov
Partial Differential Equations

DOI: 10.1134/S0012266112080071

Cite this article as:
Antonevich, A.B. & Lyakhov, D.A. Diff Equat (2012) 48: 1119. doi:10.1134/S0012266112080071


We study the Dirichlet problem in the ball for the Helmholtz equation with an additional term in the form of the product by the delta function. The additional term is approximated by the simplest integral expression, and the solution of the original equation is defined as the limit of solutions of the regularized equations. We obtain exact solutions depending on the chosen method of approximation.

Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • A. B. Antonevich
    • 1
  • D. A. Lyakhov
    • 1
  1. 1.Belarus State UniversityMinskBelarus

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