Results 21 to 30 of about 2,358,486 (249)
Oscillation criteria for delay equations [PDF]
Summary: This paper is concerned with the oscillatory behavior of first-order delay differential equations of the form \[ x'(t)+p(t)x({\tau}(t))=0, \quad t\geq t_{0},\tag{1} \] with \(p, {\tau} \in C([t_{0}, \infty), \mathbb{R}^+)\), \(\mathbb{R}^+=[0, \infty), \tau(t)\) is nondecreasing, \(\tau(t)
Kon, M. +2 more
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Oscillation Criteria for the Sublinear Schrodinger Equation [PDF]
In this paper, we propose an oscillation theorem to the sublinear Emden-Fowler equation Δ ...
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Some comparison criteria in oscillation theory [PDF]
AbstractThe purpose of this paper is to establish comparison criteria, by which the oscillatory and asymptotic behavior of linear retarded differential equations of arbitrary order is inherited from the oscillation of an associated second order linear ordinary differential equation.
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Oscillation criteria for second order nonlinear differential equations [PDF]
summary:Our aim in this paper is to present criteria for oscillation of the nonlinear differential equation \[ u^{\prime \prime }(t)+p(t)f\big (u(g(t))\big )=0\,.
Baculíková, Blanka
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Oscillation Criteria for Second-order Dynamic Equations on Time Scales [PDF]
Erbe\u27s and Hassan\u27s contributions regarding oscillation criteria are interesting in the development of oscillation theory of dynamic equations on time scales. The objective of this paper is to amend these results. © 2014 Elsevier Ltd.
Bohner, Martin +3 more
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Oscillation Criteria in Higher Order Neutral Equations
The paper deals with oscillatory criteria for the solutions of a scalar higher order neutral equation of mixed type (with delayed and advanced arguments), with constant coefficients. As a main result, the classical characterization of oscillations by the characteristic equation is extended to such equations.
Bilchev, S. J. +2 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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Oscillation criteria of certain fractional partial differential equations
In this article, we regard the generalized Riccati transformation and Riemann–Liouville fractional derivatives as the principal instrument. In the proof, we take advantage of the fractional derivatives technique with the addition of interval segmentation
Di Xu, Fanwei Meng
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Effective Prüfer angles and relative oscillation criteria
22 ...
Krüger, Helge, Teschl, Gerald
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In this work, new criteria were established for testing the oscillatory behavior of solutions of a class of even-order delay differential equations. We follow an approach that depends on obtaining new monotonic properties for the decreasing positive ...
Ali Muhib +5 more
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