In recent years, many methods have been used to find the exact solutions of nonlinear partial differential equations. One of them is called the first integral method, which is based on the ring theory ...
College of Statistics and Mathematics, Yunnan University of Finance and Economics, Kunming, China Copyright © 2020 by author(s) and Scientific Research Publishing ...
Abstract: Contribution: This article identifies possible ruptures between the ways fundamental notions of exact differential and exact differential equations (EDEs) are employed in mathematics courses ...
Abstract: In this paper, we propose a novel method for estimating the parameters (frequency, amplitude, and phase) of real sinusoids. To derive the estimator, we start from the characteristic ...
Let \(h\) be a non vanishing convex univalent function and \(p\) be an analytic function in \(\mathbb{D}\). We consider the differential subordination \[\psi_i(p(z ...
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