Results 31 to 40 of about 228,694 (166)
On a q—Analog of a Singularly Perturbed Problem of Irregular Type with Two Complex Time Variables
Mathematics, 2019 The analytic solutions of a family of singularly perturbed q-difference-differential equations in the complex domain are constructed and studied from an asymptotic point of view with respect to the perturbation parameter.
Alberto Lastra, Stéphane Malek
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On the formal power series algebras generated by a vector space and a linear functional [PDF]
Journal of Hyperstructures, 2017 Let R be a vector space ( on C) and ϕ be an element of R∗ (the dual space of R), the product r · s = ϕ(r)s converts R into an associative algebra that we denote it by Rϕ.
A. R. Khoddami
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On Inner Expansions for a Singularly Perturbed Cauchy Problem with Confluent Fuchsian Singularities
Mathematics, 2020 A nonlinear singularly perturbed Cauchy problem with confluent Fuchsian singularities is examined. This problem involves coefficients with polynomial dependence in time.
Stephane Malek
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On the fractional Allee logistic equation in the Caputo sense
Examples and Counterexamples, 2023 In the framework of population models, logistic growth and fractional logistic growth has been analyzed. In some situations the so-called Allee effect gives more accurate approximation.
I. Area, Juan J. Nieto
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ALGEBRAIC INDEPENDENCE OF CERTAIN FORMAL POWER SERIES (I) [PDF]
Journal of Sciences, Islamic Republic of Iran, 1991 We give a proof of the generalisation of Mendes-France and Van der Poorten's recent result over an arbitrary field of positive characteristic and then by extending a result of Carlitz, we shall introduce a class of algebraically independent series.
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Recent results on iterative roots
ESAIM: Proceedings and Surveys, 2014 This is a rough survey of some results on iterative roots (fractional iterates) published recently. Also some historical information to clear the connection to previous results has been given.
Jarczyk Witold
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Karpatsʹkì Matematičnì Publìkacìï, 2013 In this paper we consider the multidimensional $g$-fraction with nonequivalent variables which is the generalization of the continued $g$-fraction. The correspondence between the formal multiple power series and the above mentioned fraction is studied.
R. I. Dmytryshyn
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ALGEBRAIC INDEPENENCE OF CERTAIN FORMAL POWER SERIES (II) [PDF]
Journal of Sciences, Islamic Republic of Iran, 1992 We shall extend the results of [5] and prove that if f = Z o a x ? Z [[X]] is algebraic over Q (x), where a = 1, ƒ 1 and if ? , ? ,..., ? are p-adic integers, then 1 ? , ? ,..., ?
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Journal of Function Spaces, 2021 Suppose pn be sequence of positive reals. By Hwpn, we represent the space of all formal power series ∑n=0∞anzn equipped with ∑n=0∞λan/n+1pn0. Various topological and geometric behavior of Hwpn and the prequasi ideal constructs by s-numbers and Hwpn have ...
Awad A. Bakery, M. H. El Dewaik
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, 1994 In this article we will describe the \Maple\ implementation of an algorithm presented in~\cite{Koe92}--\cite{Koeortho} which computes an {\em exact\/} formal power series (FPS) of a given function. This procedure will enable the user to reproduce most of the results of the extensive bibliography on series~\cite{Han}.
Gruntz, Dominik, Koepf, Wolfram
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