Ultraparabolic Equations with Infinitely Increasing Coefficients in the Group of Lowest Terms and Degenerations in the Initial Hyperplane
Autor: | S. D. Ivasyshen, H. S. Pasichnyk |
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Rok vydání: | 2020 |
Předmět: | |
Zdroj: | Journal of Mathematical Sciences. 249:333-354 |
ISSN: | 1573-8795 1072-3374 |
DOI: | 10.1007/s10958-020-04946-3 |
Popis: | We consider an ultraparabolic equation with lowest coefficients infinitely increasing as |x| → ∞ and degenerations for t = 0 . We find the fundamental solution G of this equation in the explicit form, establish the properties of the function G and, in particular, deduce exact estimates for G and its derivatives. By using these properties, we prove theorems on the integral representations of solutions of the inhomogeneous equation bounded as functions of x and such that their behavior as t → 0 depends on the type of degeneration of the equation for t = 0 . |
Databáze: | OpenAIRE |
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