|
Approximate calculation of the coefficients of the Dulac series
N. B. Medvedeva Chelyabinsk State University, 129 Br. Kashirinykh str., Chelyabinsk, 454001 Russia
Abstract:
An algorithm for the approximate calculation of the coefficients of the Dulac series (asymptotic series of the monodromy transformation) in the space of vector fields with a Newton diagram containing more than one edge and a monodromic singular point is proposed. The conditions for the applicability of this algorithm are obtained. The algorithm is implemented in the MAPLE package. Examples are given for the case of a Newton diagram consisting of two edges.
Keywords:
Monodromic singular point, focus, center, monodromy transformation, Dulac series, correspondence mapping, Newton diagram, asymptotic representation, Hadamard integral.
Received: 18.12.2020 Revised: 22.01.2021 Accepted: 30.03.2021
Citation:
N. B. Medvedeva, “Approximate calculation of the coefficients of the Dulac series”, Izv. Vyssh. Uchebn. Zaved. Mat., 2021, no. 10, 37–50; Russian Math. (Iz. VUZ), 65:10 (2021), 31–43
Linking options:
https://www.mathnet.ru/eng/ivm9719 https://www.mathnet.ru/eng/ivm/y2021/i10/p37
|
|