On some perturbations of a symmetric stable process and the corresponding Cauchy problems by M. M. Osypchuk

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Diffusion in media with membranes and some nonlocal parabolic problems by B. Kopytko, M. Osypchuk, R. Shevchuk

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On the distribution of a rotationally invariant α-stable process at the hitting time of a given hyperplane by M. M. Osypchuk, M. I. Portenko

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Symmetric a-stable stochastic process and the third initial-boundary-value problem for the corresponding pseudodifferential equation by M. M. Osypchuk, M. I. Portenko

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On Simple-Layer Potentials for One Class of Pseudodifferential Equations by M. M. Osypchuk, M. I. Portenko

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On Ornshtein-Uhlenbeck's measure of a Hilbert ball in the space of continuous functions by M. M. Osypchuk, M. I. Portenko

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One type of singular perturbations of a~multidimensional stable process by M. M. Osypchuk, M. I. Portenko

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A teacher who is always near (to the 80th anniversary of Corresponding Member of NAS of Ukraine M.I. Portenko) by O. V. Ariasova, B. I. Kopytko, M. M. Osypchuk

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Mykola Ivanovych Portenko (on his 75th birthday) by B. I. Kopytko, M. M. Osypchuk, A. A. Dorohovtsev

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