Results 1 to 10 of about 235,061 (287)
Acta et Commentationes: Ştiinţe Exacte şi ale Naturii, 2023 In this paper we find conditions for a singular point O(0, 0) of a center or a focus type to be a center, in a cubic differential system with one invariant straight line and one invariant cubic.
Dumitru Cozma
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An Algorithm for Higher Order Hopf Normal Forms [PDF]
Shock and Vibration, 1995 Normal form theory is important for studying the qualitative behavior of nonlinear oscillators. In some cases, higher order normal forms are required to understand the dynamic behavior near an equilibrium or a periodic orbit.
A.Y.T. Leung, T. Ge
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Acta et Commentationes: Ştiinţe Exacte şi ale Naturii, 2023 In this paper for a cubic differential system with a singular point
Dumitru Cozma
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Centers of cubic differential systems with the line at infinity of maximal multiplicity
Acta et Commentationes: Ştiinţe Exacte şi ale Naturii, 2023 We classify all cubic differential systems with a center-focus critical point and the line at infinity of maximal multiplicity. It is proved that the critical point is of the center type if and only if the divergence of the vector field associated to ...
Alexandru Șubă
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Partial Differential Equations in Applied Mathematics, 2021 In present study, Modified Cubic Hyperbolic B-spline Differential Quadrature Method is constructed for getting the numerical approximations of 1D and 2D non-linear Schrödinger equations. Modified cubic Hyperbolic B-spline is implemented as basis function
Mamta Kapoor, Varun Joshi
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Results in Physics, 2023 The main objective of this paper is to study the chaotic behavior and embedded soliton of cubic-quartic χ(2) and χ(3) nonlinear susceptibilities with multiplicative white noise.
Zhao Li, Xue Zhang, Fang Miao
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A Composite Algorithm for Numerical Solutions of Two-Dimensional Coupled Burgers’ Equations
Journal of Mathematics, 2021 In this study, a new composite algorithm with the help of the finite difference and the modified cubic trigonometric B-spline differential quadrature method is developed.
Vikas Kumar +2 more
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Invariant Linearization Criteria for Systems of Cubically Nonlinear Second-Order Ordinary Differential Equations [PDF]
Journal of Nonlinear Mathematical Physics, 2021 Invariant linearization criteria of square systems of second-order quadratically semi-linear ordinary differential equations (ODEs) that can be represented as geodesic equations are extended to square systems of ODEs cubically nonlinear in the first derivatives.
Mahomed, F. M., Qadir, Asghar
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Cubic-Receiver-Based Indoor Optical Wireless Location System
IEEE Photonics Journal, 2016 A cubic-receiver-based indoor optical wireless location system is proposed in this paper. The cubic receiver arranging five photodiodes (PDs) as a cubic structure is used as photodetector to measure the angles of arrival (AOAs) of the incident light from
Ling Wei +4 more
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IEEE Access, 2021 Compared with AC power system, DC distribution network is a low-damping system without natural zero crossing. The DC fault current will reach its peak value within a few milliseconds, posing a great threat to power electronic devices.
Yanfang Wei +5 more
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