Journal Article10.3934/math.20231340
Boundary value problems for a second-order differential equation with involution in the second derivative and their solvability
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TL;DR: The paper investigates solvability of boundary value problems for a second-order differential equation with involution in the second derivative and their solvability. The results cover both problems with and without involution in the lower terms.
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Abstract:
We consider the two-point boundary value problems for a nonlinear one-dimensional second-order differential equation with involution in the second derivative and in lower terms. The questions of existence and uniqueness of the classical solution of two-point boundary value problems are studied. The definition of the Green's function is generalized for the case of boundary value problems for the second-order linear differential equation with involution, indicating the points of discontinuities and the magnitude of discontinuities of the first derivative. Uniform estimates for the Green's function of the linear part of boundary value problems are established. Using the contraction mapping principle and the Schauder fixed point theorem, theorems on the existence and uniqueness of solutions to the boundary value problems are proved. The results obtained in this paper cover the boundary value problems for one-dimensional differential equations with and without involution in the lower terms.
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Citations
On solvability of some inverse problems for a nonlocal fourth-order parabolic equation with multiple involution
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