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Found 8 Documents (Results 1–8)

On the uniform approximation of functions of bounded variation by Lagrange interpolation polynomials with a matrix \({\mathcal L}_n^{(\alpha_n,\beta_n)}\) of Jacobi nodes. (English. Russian original) Zbl 1466.41002

Izv. Math. 84, No. 6, 1224-1249 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 197-222 (2020).
MSC:  41A05
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Threshold resonances and virtual levels in the spectrum of cylindrical and periodic waveguides. (English. Russian original) Zbl 1458.35031

Izv. Math. 84, No. 6, 1105-1160 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 73-130 (2020).
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Complete description of the Lyapunov spectra of continuous families of linear differential systems with unbounded coefficients. (English. Russian original) Zbl 1506.34070

Izv. Math. 84, No. 6, 1037-1055 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 3-22 (2020).
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