Singular elliptic operators of second order with purely discrete spectra

Academic Article


  • The Friedrichs extension of a second order singular elliptic operator is considered on a weighted £*(tø) space. The region tø is not necessarily bounded. Necessary conditions and sufficient conditions on the coefficients that will insure a discrete spectrum are given with a certain degree of sharpness achieved. The boundary conditions include the Dirichlet, Neumann, and mixed Dirichlet-Neumann boundary value problems. © 1982 American Mathematical Society.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Lewis RT
  • Start Page

  • 653
  • End Page

  • 666
  • Volume

  • 271
  • Issue

  • 2