We construct the classical fundamental solution of the Cauchy problem for a degenerate ultraparabolic equation of the Kolmogorov type with two groups of spatial variables of degeneration. Exact estimates of this solution and its derivatives are obtained.
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S. D. Ivasyshen and I. P. Medynsky, “Classical fundamental solutions of the Cauchy problem for ultraparabolic Kolmogorov-type equations with two groups of spatial variables.” in: V. A. Mykhailets’ (editor), Differential Equations and Related Problems of Analysis [in Ukrainian], Institute of Mathematics, Ukrainian National Academy of Sciences, Kiev (2016), pp. 108–155.
S. D. Ivasyshen and I. P. Medynsky, “Classical fundamental solution of the Cauchy problem for ultraparabolic Kolmogorov-type equations with two groups of spatial variables of degeneration. I,” Mat. Met. Fiz.-Mekh. Polya,60, No. 3, 9–31 (2017).
S. D. Eidelman, S. D. Ivasyshen, and A. N. Kochubei, Analytic Methods in the Theory of Differential and Pseudo-Differential Equations of Parabolic Type, Birkhäuser, Basel (2004), https://doi.org/https://doi.org/10.1007/978-3-0348-7844-9
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Translated from Matematychni Metody ta Fizyko-Mekhanichni Polya, Vol. 60, No. 4, pp. 7–24, October–December, 2017.
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Ivasyshen, S.D., Medynsky, I.P. Classical Fundamental Solution of the Cauchy Problem for Ultraparabolic Kolmogorov-Type Equations with Two Groups of Spatial Variables of Degeneration. II. J Math Sci 247, 1–23 (2020). https://doi.org/10.1007/s10958-020-04786-1
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DOI: https://doi.org/10.1007/s10958-020-04786-1