Results 21 to 30 of about 4,336,710 (302)
Improved Hille Oscillation Criteria for Nonlinear Functional Dynamic Equations of Third-Order
This paper aims to improve Hille oscillation criteria for the third-order functional dynamic equation p2(ξ)ϕγ2p1ξϕγ1yΔ(ξ)ΔΔ+a(ξ)ϕγy(g(ξ))=0, on an above-unbounded time scale T. The obtained results improve related contributions reported in the literature
Taher S. Hassan +5 more
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Oscillation criteria for third-order functional half-linear dynamic equations
In this paper, we study the third-order functional dynamic equation { r 2 ( t ) ϕ α 2 ( [ r 1 ( t ) ϕ α 1 ( x Δ ( t ) ) ] Δ ) } Δ + q ( t ) ϕ α ( x ( g ( t ) ) ) = 0 , $$ \bigl\{ r_{2}(t)\phi_{\alpha_{2}} \bigl( \bigl[ r_{1}(t) \phi _{\alpha _{1}} \bigl(
Taher S Hassan +2 more
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A dynamical study of the Friedmann equations [PDF]
Cosmology is an attracting subject for students but usually difficult to deal with if general relativity is not known. In this article, we first recall the Newtonian derivation of the Friedmann equations which govern the dynamics of our universe and discuss the validity of such a derivation.
Uzan, Jean-Philippe, Lehoucq, Roland
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Forced oscillation of second-order superlinear dynamic equations on time scales
In this paper, by constructing a class of Philos type functions on time scales, we investigate the oscillation of the following second-order forced nonlinear dynamic equation $$x^{\Delta\Delta}(t)-p(t)|x(q(t))|^{\lambda-1}x(q(t))=e(t),\quad t\in\mathbb{T}
Yuangong Sun
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Dynamics of the inflationary flow equations [PDF]
9 pages 4 figures.
Chongchitnan, Sirichai +1 more
openaire +2 more sources
Dynamics of the Painlevé-Ince Equation
AbstractThe Painlevé-Ince differential equation $$y'' + 3 y y' + y^3=0$$ y ′ ′ + 3 y
openaire +2 more sources
Cm-smoothness of invariant fiber bundles for dynamic equations on measure chains [PDF]
We present a new self-contained and rigorous proof of the smoothness of invariant fiber bundles for dynamic equations on measure chains or time scales.
Stefan Siegmund +5 more
core +1 more source
Existence of positive solutions for second-order nonlinear neutral dynamic equations on time scales
In this article we study the existence of positive solutions for second-order nonlinear neutral dynamic equations on time scales. The main tool employed here is Schauder’s fixed point theorem.
Bouchelaghem Faycal +2 more
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Dynamics of Nanoparticle Self-Assembly by Liquid Crystal Sorting in Two Dimensions
We study nonlinear dynamical equations for coupled conserved and non-conserved fields describing nanoparticle concentration and liquid crystal order parameter, respectively, and solve them numerically over bidimensional domains. These equations model the
F. Gael Segura-Fernández +3 more
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