Results 11 to 20 of about 853,118 (283)
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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On a fourth order nonlinear Helmholtz equation [PDF]
, 2018 In this paper, we study the mixed dispersion fourth order nonlinear Helmholtz equation $\Delta^2 u -\beta \Delta u + \alpha u= \Gamma|u|^{p-2} u$ in $\mathbb R^N$ for positive, bounded and $\mathbb Z^N$-periodic functions $\Gamma$.
Abramowitz M. +11 more
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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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Oscillation of Neutral Differential Equations with Damping Terms
Mathematics, 2023 Our interest in this paper is to study and develop oscillation conditions for solutions of a class of neutral differential equations with damping terms. New oscillation criteria were obtained by using Riccati transforms. The criteria we obtained improved
Ioannis Dassios +3 more
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The fourth order strongly noncanonical operators
Open Mathematics, 2018 It is shown that the strongly noncanonical fourth order ...
Baculikova Blanka, Dzurina Jozef
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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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Single-shot fourth-order autocorrelator [PDF]
Advanced Photonics, 2019 The temporal contrast is one of the most important parameters of an ultra-high intense laser pulse. Third-order auto-correlator or cross-correlator have been widely used to characterize the temporal contrast of an ultra-intense laser pulse in the past decades.
Wang, Peng +3 more
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Wormhole geometries in fourth-order conformal Weyl gravity [PDF]
, 2016 We present an analysis of the classic wormhole geometries based on conformal Weyl gravity, rather than standard general relativity. The main characteristics of the resulting traversable wormholes remain the same as in the seminal study by Morris and ...
Ault, Kellie L., Varieschi, Gabriele U.
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THE FOURTH ORDER MIXED PERIODIC RECURRENCE FRACTIONS
Journal of Vasyl Stefanyk Precarpathian National University, 2015 Offered economical algorithm for calculation of rational shortenings of thefourth-order mixed periodic recurrence fraction.
A.V. Semenchuk, R.A. Zatorsky
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A new duality transformation for fourth-order gravity [PDF]
, 1997 We prove that for non-linear L = L(R), the Lagrangians L and \hat L give conformally equivalent fourth-order field equations being dual to each other. The proof represents a new application of the fact that the operator is conformally invariant.Comment:
A. Dobado +19 more
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