Geodesic
Weyl function for sum of operators tensor products
Nanosistemy: fizika, himiâ, matematika, Tome 4 (2013) no. 6, pp. 747-759 Cet article a éte moissonné depuis la source Math-Net.Ru

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The boundary triplets approach is applied to the construction of self-adjoint extensions of the operator having the form $S=A\otimes I_T+I_A\otimes T$ where the operator $A$ is symmetric and the operator $T$ is bounded and self-adjoint. The formula for the $\gamma$-field and the Weyl function corresponding the the boundary triplet $\Pi_S$ is obtained in terms of the $\gamma$-field and the Weyl function corresponding to the boundary triplet $\Pi_A$.
Keywords: operator extension, Weyl function, boundary triplet. 
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     author = {A. A. Boitsev and H. Neidhardt and I. Yu. Popov},
     title = {Weyl function for sum of operators tensor products},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {747--759},
     year = {2013},
     volume = {4},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2013_4_6_a1/}
}
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A. A. Boitsev; H. Neidhardt; I. Yu. Popov. Weyl function for sum of operators tensor products. Nanosistemy: fizika, himiâ, matematika, Tome 4 (2013) no. 6, pp. 747-759. http://geodesic.mathdoc.fr/item/NANO_2013_4_6_a1/