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On the boundary value problem for the Sturm–Liouville equation with the discontinuous coefficient
Authors:
A Adiloglu Nabiev
RKh Amirov
Institution:
1. Department of Secondary Science and Mathematics Education, Faculty of Education, Cumhuriyet University, , 58140 Sivas, Turkey;2. Department of Mathematics, Faculty of Science, Cumhuriyet University, , 58140 Sivas, Turkey
Abstract:
We consider a boundary value problem for the Sturm–Liouville equation with piecewise‐constant leading coefficient. We prove that some integral representations for the solutions of the considered equation can be obtained by using classical transformation operators for the Sturm–Liouville operator at the end points of a finite interval. We also investigate the spectral characteristics of the boundary value problem, prove the completeness and expansion theorem. Copyright © 2012 John Wiley & Sons, Ltd.
Keywords:
Sturm–
Louville equation
boundary value problems
spectral analysis of ordinary differential operators
transformation operator
integral representation
asymptotic formulas for eigenvalues
expansion formula
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