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 Capacity functor in the category of compactaM. M. Zarichnyi, O. R. Nykyforchyn 3 Gauss–Arnoldi quadrature for $\langle(zI-A)^{-1}\varphi,\varphi\rangle$ and rational Padé-type approximation for Markov-type functionsL. A. Knizhnerman 27 Finding polynomials of best approximation with weightV. I. Lebedev 49 On non-trivial additive cocycles on the torusA. V. Rozhdestvenskii 71 Best approximations and widths of classes of periodic functions of several variablesA. S. Romanyuk 93 Semimultiplicative moments of factors in Wiener–Hopf matrix factorizationM. S. Sgibnev 115 Double spaces with isolated singularitiesI. A. Cheltsov 131 Adiabatic limits on Riemannian Heisenberg manifoldsA. A. Yakovlev 149