Results 21 to 30 of about 324,196 (280)
, 2004 A parametrized nonlinear differential equation can have multiple equilibria as the parameter is varied. A local bifurcation of a parametrized differential equation occurs at an equilibrium where there is a change in the topological character of the ...
Chang, Dong Eui +2 more
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Науковий вісник Ужгородського університету. Серія: Математика і інформатика, 2018 Constructive conditions for the existence of a nonlinear Noether integral-differential boundary value problem are found. An iterative scheme with quadratic convergence is constructed to find the solution of a nonlinear integral-differential boundary ...
С. М. Чуйко +2 more
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Complexity, 2022 This work introduces a three-dimensional, highly nonlinear quadratic oscillator with no linear terms in its equations. Most of the quadratic ordinary differential equations (ODEs) such as Chen, Rossler, and Lorenz have at least one linear term in their ...
Arthanari Ramesh +5 more
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The existence of n-order algebraic curve solutions of planar quadratic polynomial systems
上海师范大学学报. 自然科学版, 2017 In this short article, we show that for any given positive integer n ≥ 2, there is a planar quadratic differential system having n-degree and 2n-degree classical algebraic curve solutions.
Li Jibin
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Demonstratio Mathematica, 2023 In this article, we investigate the existence and the precise form of finite-order transcendental entire solutions of some system of Fermat-type quadratic binomial and trinomial shift equations in Cn{{\mathbb{C}}}^{n}. Our results are the generalizations
Haldar Goutam, Banerjee Abhijit
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Quantum stochastic equation for the low density limit [PDF]
, 2002 A new derivation of quantum stochastic differential equation for the evolution operator in the low density limit is presented. We use the distribution approach and derive a new algebra for quadratic master fields in the low density limit by using the ...
Accardi, L. +2 more
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Symmetry of Quadratic Homogeneous Differential Systems
, 2008 10 ...
Nadjafikhah, Mehdi +1 more
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Journal of High Energy Physics, 2019 We consider L-loop two-point tadpole (watermelon) integral with arbitrary masses, regularized both dimensionally and analytically. We derive differential equation system and recurrence relations (shifts of dimension and denominator powers).
Roman N. Lee, Andrei A. Pomeransky
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On the uniqueness of algebraic limit cycles for quadratic polynomial differential systems with two pairs of equilibrium points at infinity [PDF]
, 2017 Agraïments: The second author is partially supported by FCT/Portugal through UID/MAT/04459/2013.Algebraic limit cycles in quadratic polynomial differential systems started to be studied in 1958, and few years later the following conjecture appeared ...
Llibre, Jaume, Valls, Clàudia
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The acyclicity of a quadratic differential system
Вестник Адыгейского государственного университета, серия «Естественно-математические и технические науки», 2021 Дан краткий обзор некоторых основных публикаций, посвященных исследованию вопроса о предельных циклах и сепаратрисах квадратичных дифференциальных систем. Рассмотрено наличие замкнутых траекторий для определенного класса автономных квадратичных систем на плоскости.
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