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Found 36 Documents (Results 1–36)

One boundary-value problem for elliptic differential-operator equations of the second order with quadratic spectral parameter. (English. Russian original) Zbl 1499.34316

Ukr. Math. J. 69, No. 6, 857-875 (2017); translation from Ukr. Mat. Zh. 69, No. 6, 734-750 (2017).
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Spaces of smooth and generalized vectors of the generator of an analytic semigroup and their applications. (English. Ukrainian original) Zbl 1498.47091

Ukr. Math. J. 69, No. 4, 561-597 (2017); translation from Ukr. Mat. Zh. 69, No. 4, 478-509 (2017).
MSC:  47D06 47B44
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On the relationship between the multiplicities of eigenvalues in finite- and infinite-dimensional problems on graphs. (English. Ukrainian original) Zbl 1498.39003

Ukr. Math. J. 69, No. 4, 521-533 (2017); translation from Ukr. Mat. Zh. 69, No. 4, 445-455 (2017).
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Jacobi-type block matrices corresponding to the two-dimensional moment problem: polynomials of the second kind and Weyl function. (English. Ukrainian original) Zbl 1490.44007

Ukr. Math. J. 68, No. 4, 557-569 (2016); translation from Ukr. Mat. Zh. 68, No. 4, 495-505 (2016).
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On the \(C^\ast\)-algebra generated by the Bergman operator, Carleman second-order shift, and piecewise continuous coefficients. (English. Russian original) Zbl 1496.47130

Ukr. Math. J. 67, No. 9, 1400-1410 (2016); translation from Ukr. Mat. Zh. 67, No. 9, 1244-1252 (2015).
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Integral manifolds for semilinear evolution equations and admissibility of function spaces. (English. Russian original) Zbl 1272.34081

Ukr. Math. J. 64, No. 6, 881-911 (2012); translation from Ukr. Mat. Zh. 64, No. 6, 772-796 (2012).
MSC:  34G20 34C45
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Weyl’s theorem for algebraically \(wF(p, r, q)\) operators with \(p, r > 0\) and \(q \geq 1\). (English. Russian original) Zbl 1288.47004

Ukr. Math. J. 63, No. 8, 1256-1267 (2012); translation from Ukr. Mat. Zh. 63, No. 8, 1092-1102 (2011).
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Factorization of Hermitian matrix-valued functions and classification of shifts in a space with indefinite metric. (English. Russian original) Zbl 0706.47008

Ukr. Math. J. 41, No. 10, 1195-1197 (1989); translation from Ukr. Mat. Zh. 41, No. 10, 1388-1391 (1989).
Reviewer: S.Aliou-Lo
MSC:  47A56 47A68 47B50
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