Abstract:
We consider a system of singularly perturbed integro-differential Fredholm equations with rapidly changing kernel in the case of irreversible operator of differential part. We develop an algorithm for constructing regularized asymptotic solutions. It is shown that in the presence of rapidly decreasing multiplier in the kernel the original problem is not on the spectrum (i.e., it is solvable for any right-hand side). We study the limit transition (with small parameter tending to zero), and solve the problem of initialization, i.e., the problem of extracting of the source data for which an exact solution to the system tends to the limit at all duration (including a zone of boundary layer).
This publication is cited in the following 7 articles:
Abdukhafiz A. Bobodzhanov, Burkhan T. Kalimbetov, Valeriy F. Safonov, “Algorithm of the regularization method for a singularly perturbed integro-differential equation with a rapidly decreasing kernel and rapidly oscillating inhomogeneity”, Zhurn. SFU. Ser. Matem. i fiz., 15:2 (2022), 216–225
Kalimbetov B.T. Tuychiev O.D., “Asymptotic Solution of the Cauchy Problem For the Singularly Perturbed Partial Integro-Differential Equation With Rapidly Oscillating Coefficients and With Rapidly Oscillating Heterogeneity”, Open Math., 19 (2021), 244–258
Bobodzhanov A., Kalimbetov B., Safonov V., “Asymptotic Solutions of Singularly Perturbed Integro-Differential Systems With Rapidly Oscillating Coefficients in the Case of a Simple Spectrum”, AIMS Math., 6:8 (2021), 8835–8853
B. Kalimbetov, V. Safonov, “Regularization method for singularly perturbed integro-differential equations with rapidly oscillating coefficients and rapidly changing kernels”, Axioms, 9:4 (2020), 131
A. A. Bobodzhanov, B. T. Kalimbetov, V. F. Safonov, “Singularly perturbed control problems in the case of the stability of the spectrum of the matrix of an optimal system”, Bull. Karaganda Univ-Math., 96:4 (2019), 22–38
B. T. Kalimbetov, V. F. Safonov, “Integro-differentiated singularly perturbed equations with fast oscillating coefficients”, Bull. Karaganda Univ-Math., 94:2 (2019), 33–47
V. I. Kachalov, “On a method of holomorphic regularization of singularly perturbed problems”, Russian Math. (Iz. VUZ), 61:6 (2017), 44–50