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JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika
Izv. Vyssh. Uchebn. Zaved. Mat., 2022, Number 4, Pages 3–14 (Mi ivm9764)
Boundary value problem for a fourth-order equation of parabolic-hyperbolic type with multiple characteristics, whose slopes are greater than one
Yu. P. Apakov, S. M. Mamajanov

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