کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8899687 | 1631549 | 2018 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The use of two-point Taylor expansions in singular one-dimensional boundary value problems I
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موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
آنالیز ریاضی
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چکیده انگلیسی
We consider the second-order linear differential equation (x+1)yâ³+f(x)yâ²+g(x)y=h(x) in the interval (â1,1) with initial conditions or boundary conditions (Dirichlet, Neumann or mixed Dirichlet-Neumann). The functions f(x), g(x) and h(x) are analytic in a Cassini disk Dr with foci at x=±1 containing the interval [â1,1]. Then, the end point of the interval x=â1 may be a regular singular point of the differential equation. The two-point Taylor expansion of the solution y(x) at the end points ±1 is used to study the space of analytic solutions in Dr of the differential equation, and to give a criterion for the existence and uniqueness of analytic solutions of the boundary value problem. This method is constructive and provides the two-point Taylor approximation of the analytic solutions when they exist.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Mathematical Analysis and Applications - Volume 463, Issue 2, 15 July 2018, Pages 708-725
Journal: Journal of Mathematical Analysis and Applications - Volume 463, Issue 2, 15 July 2018, Pages 708-725
نویسندگان
Chelo Ferreira, José L. López, Ester Pérez SinusÃa,