Results 1 to 10 of about 702,962 (168)
The cubic fourth-order Schrödinger equation
Journal of Functional Analysis, 2009 38 pages, references ...
Benoit Pausader
exaly +4 more sources
New Criteria for Oscillation of Half-Linear Differential Equations with p-Laplacian-like Operators
Mathematics, 2021 In this paper, new oscillatory properties for fourth-order delay differential equations with p-Laplacian-like operators are established, using the Riccati transformation and comparison method.
Omar Bazighifan +4 more
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Fourth-order symplectic integration [PDF]
Physica D: Nonlinear Phenomena, 1990 Die Autoren behandeln die Integration der Hamiltonschen Gleichungen unter Anwendung einer expliziten Vierter-Ordnung-Methode. Diese bewahrt die Eigenschaft, daß eine zeitliche Entwicklung eines solchen Systems eine kanonische Transformation aus den Anfangsbedingungen bis zum Endzustand erhält.
Forest, E., Ruth, R.D.
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Rearrangements and fourth order equations [PDF]
Quarterly of Applied Mathematics, 2003 The paper contains a priori estimates for the deformation of plates and beams. In particular we investigate the “worst cases” for the maximum deformation depending on where a load is placed on a beam or plate. The methods of proof use rearrangement argument.
FERONE, VINCENZO, KAWOHL B.
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Bouncing Cosmology in Fourth-Order Gravity
Universe, 2022 The Big Bang initial singularity problem can be solved by means of bouncing solutions. In the context of extended theories of gravity, we will look for covariant effective actions whose field equations contain up to fourth-order derivatives of the metric
Marcello Miranda +3 more
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Kamenev-Type Asymptotic Criterion of Fourth-Order Delay Differential Equation
Fractal and Fractional, 2020 In this paper, we obtain necessary and sufficient conditions for a Kamenev-type oscillation criterion of a fourth order differential equation of the form r 3 t r 2 t r 1 t y ′ t ′ ′ ′ + q t f y &
Omar Bazighifan
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Fourth-order operators on manifolds with a boundary [PDF]
Classical and Quantum Gravity, 1999 25 pages, plain Tex.
ESPOSITO G, KAMENSHCHIK A.YU
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On fourth-order jacobsthal quaternions
Journal of Mathematical Sciences and Modelling, 2018 In this paper, we present for the first time a sequence of quaternions of order 4 that we will call the fourth-order Jacobsthal and the fourth-order Jacobsthal-Lucas quaternions. In particular, we are interested in the generating function, Binet formula,
Gamaliel Cerda-morales
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Virial theorem in scalar tensor fourth order gravity
European Physical Journal C: Particles and Fields, 2021 In this paper, we study, in the Newtonian limit, the virial theorem in the context of a scalar tensor fourth order gravity. In particular, we show, that for a isolated galaxy in viral equilibrium, a specific class of scalar tensor fourth order gravity, i.
A. Capolupo +3 more
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Fourth Order Diffusion Equations with Increasing Entropy
Entropy, 2012 The general quasi-linear autonomous fourth order diffusion equation <em>u<sub>t</sub> = −[G(u)u<sub>xxx </sub> + h(u, u<sub>x</sub>, u<sub>xx</sub>)]<sub>x </sub></em> ...
Philip Broadbridge, Naghmana Tehseen
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