Laurent-Pad´e approximation for locating singularities of meromorphic functions with valuesgiven on simple closed contours
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517.53+517.9 (4)
Анализ (301)
Дифференциальные, интегральные и другие функциональные уравнения. Конечные разности. Вариационное исчисление. Функциональный анализ (243)
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CAPCELEA, Maria, CAPCELEA, Titu. Laurent-Pad´e approximation for locating singularities of meromorphic functions with valuesgiven on simple closed contours. In: Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, 2020, nr. 2(93), pp. 76-87. ISSN 1024-7696.
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Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica
Numărul 2(93) / 2020 / ISSN 1024-7696 /ISSNe 2587-4322

Laurent-Pad´e approximation for locating singularities of meromorphic functions with values
given on simple closed contours

CZU: 517.53+517.9
MSC 2010: 65E05, 41A21.

Pag. 76-87

Capcelea Maria, Capcelea Titu
 
Moldova State University
 
Proiecte:
 
Disponibil în IBN: 18 septembrie 2020


Rezumat

In the present paper the Pad´e approximation with Laurent polynomials is examined for a meromorphic function on a finite domain of the complex plane. Values of the function are given at the points of a simple closed contour from this domain. Based on this approximation, an efficient numerical algorithm for locating singular points of the function is proposed.

Cuvinte-cheie
Pad´e approximation, Meromorphic function, simple closed contour, localization of singular points

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