Geodesic
Matrix Schr\"odinger Operator with $\delta$-Interactions
Matematičeskie zametki, Tome 100 (2016) no. 1, pp. 59-77.

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The matrix Schrödinger operator with point interactions on the semiaxis is studied. Using the theory of boundary triplets and the corresponding Weyl functions, we establish a relationship between the spectral properties (deficiency indices, self-adjointness, semiboundedness, etc.) of the operators under study and block Jacobi matrices of certain class.
Keywords: Schrödinger operator, delta-interaction, self-adjointness, deficiency index.
Mots-clés : Jacobi matrix 
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A. S. Kostenko; M. M. Malamud; D. D. Natyagajlo. Matrix Schr\"odinger Operator with $\delta$-Interactions. Matematičeskie zametki, Tome 100 (2016) no. 1, pp. 59-77. http://geodesic.mathdoc.fr/item/MZM_2016_100_1_a4/

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