A Remark on the Qualitative Spectral Theory or Sturm-Liouville Operators
Erich Müller-Pfeiffer
Pädagogische Hochschule, Erfurt, Germany
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Abstract
If denotes the maximal number of zeros of the non-trivial solutions of the Sturm-Liouville equation
then under some hypothesis the number of eigenvalues of a special selfadjoint operator (Friedrichs extension) is equal to below .
Cite this article
Erich Müller-Pfeiffer, A Remark on the Qualitative Spectral Theory or Sturm-Liouville Operators. Z. Anal. Anwend. 3 (1984), no. 4, pp. 367–369
DOI 10.4171/ZAA/114