Journal of Mathematical Sciences: Advances and Applications[1] D. Buschmann, G. Stolz and J. Weidmann, One-dimensional
operators with local point interactions, J. Reine Angew. Math. 467
(1995), 169-186.
[2] A. V. Likov and Y. A. Mikhalilov, The Theory of Heat and Mass
Transfer, Qosenergaizdat, 1963 (Russian).
[3] C. A. Liondas and D. P. Chrissoulidis, Two-interval
Sturm-Liouville theory for the electrostatic potential of a point
charge near a dielectric cone, J. Appl. Math. 2009 (to appear).
[4] O. Sh. Mukhtarov and S. Yakubov, Problems for differential
equations with transmission conditions, Applicable Analysis 81 (2002),
1033-1064.
[5] M. A. Naimark, Linear Differential Operators, Part II, Harrap,
London, 1968.
[6] A. P. Wang, J. Sun and A. Zettl, Two-interval Sturm-Liouville
operators in modified Hilbert spaces, J. Math. Anal. Appl. 328 (2007),
390-399.
[7] A. Zettl, Sturm-Liouville Theory, Mathematical Surveys and
Monographs, Providence, R.I.: Amer. Math. Soc. 121 (2005).
