具有无限边界条件的奇摄动方程解的渐近估计

N. Atakhan, K.S. Nurpeisov, K. Konisbayeva
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引用次数: 0

摘要

研究了一类线性奇摄动微分方程具有无限边界条件的两点边值问题。给出了一类线性无关的齐次摄动方程解的渐近估计。辅助的,所谓的边界函数,柯西函数被定义。对于足够小的参数值,给出了柯西函数和边界函数的估计。提出了一种构造边值问题期望解的算法。证明了一类边值问题解的可解性定理。在参数值足够小的情况下,建立了非齐次边值问题解的渐近估计。确定了退化方程的初始条件。公式确定;研究了初始跳变现象。
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Asymptotic estimations of the solution for a singularly perturbed equation with unlimited boundary conditions
The paper studies a two-point boundary value problem with unlimited boundary conditions for a linear singularly perturbed differential equation. Asymptotic estimates are given for a linearly independent system of solutions of a homogeneous perturbed equation. Auxiliary, so-called boundary functions, the Cauchy function are defined. For sufficiently small values of the parameter, estimates for the Cauchy function and boundary functions are found. An algorithm for constructing the desired solution of the boundary value problem has been developed. A theorem on the solvability of a solution to a boundary value problem is proved. For sufficiently small values of the parameter, an asymptotic estimate for the solution of the inhomogeneous boundary value problem is established. The initial conditions for the degenerate equation are determined. The formula is determined; the phenomena of the initial jump are studied.
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来源期刊
CiteScore
1.20
自引率
50.00%
发文量
50
期刊最新文献
A Novel Numerical Scheme for a Class of Singularly Perturbed Differential-Difference Equations with a Fixed Large Delay On the class of pointwise and integrally loaded differential equations Erratum to: “Coefficients of multiple Fourier-Haar series and variational modulus of continuity” [Bulletin of the Karaganda University. Mathematics series, No. 4(112), 2023, pp. 21–29] Some properties of the one-dimensional potentials Factorization of abstract operators into two second degree operators and its applications to integro-differential equations
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