Yuri A. Ashrafyan, Tigran N. Harutyunyan
Abstract:
Necessary and sufficient conditions for two sequences
and
to be the spectral
data for a certain Sturm-Liouville problem are well known.
We add two more conditions so that the same two sequences become necessary
and sufficient for being the spectral data for a Sturm-Liouville problem
with fixed boundary conditions.
Submitted December 17, 2014. Published January 28, 2015.
Math Subject Classifications: 34B24, 34L20.
Key Words: Inverse Sturm-Liouville problem; eigenvalues; norming constants.
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Yuri A. Ashrafyan Yerevan State University, Armenia email: yuriashrafyan@ysu.am | |
Tigran N. Harutyunyan Yerevan State University, Armenia email: hartigr@yahoo.co.uk |
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