Results 21 to 30 of about 4,114,452 (292)

More Effective Results for Testing Oscillation of Non-Canonical Neutral Delay Differential Equations

open access: yesMathematics, 2021
In this work, we address an interesting problem in studying the oscillatory behavior of solutions of fourth-order neutral delay differential equations with a non-canonical operator.
Higinio Ramos   +3 more
doaj   +1 more source

Black hole shadows in fourth-order conformal Weyl gravity [PDF]

open access: yes, 2016
We calculate the characteristics of the "black hole shadow" for a rotating, neutral black hole in fourth-order conformal Weyl gravity. It is shown that the morphology is not significantly affected by the underlying framework, except for very large masses.
Mureika, Jonas R.   +1 more
core   +3 more sources

The fourth order strongly noncanonical operators

open access: yesOpen Mathematics, 2018
It is shown that the strongly noncanonical fourth order ...
Baculikova Blanka, Dzurina Jozef
doaj   +1 more source

Fuzzy Type RK4 Solutions to Fuzzy Hybrid Retarded Delay Differential Equations

open access: yesFrontiers in Physics, 2019
This paper constructs the numerical solution of particular type of differential equations called fuzzy hybrid retarded delay-differential equations using the method of Runge-Kutta for fourth order.
Prasantha Bharathi Dhandapani   +4 more
doaj   +1 more source

Neumann's problem for one equation fourth order

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2009
Neumann's problem for pseudoparabolic equation of the 4th order in a rectangular domain is considered in the paper. The existence and uniqueness of solution are proved.
E. A. Utkina
doaj   +1 more source

A regularized gradient flow for the p-elastic energy

open access: yesAdvances in Nonlinear Analysis, 2022
We prove long-time existence for the negative L2{L}^{2}-gradient flow of the p-elastic energy, p≥2p\ge 2, with an additive positive multiple of the length of the curve.
Blatt Simon   +2 more
doaj   +1 more source

Asymptotic analysis for fourth order Paneitz equations with critical growth [PDF]

open access: yes, 2011
We investigate fourth order Paneitz equations of critical growth in the case of $n$-dimensional closed conformally flat manifolds, $n \ge 5$. Such equations arise from conformal geometry and are modelized on the Einstein case of the geometric equation ...
Hebey, Emmanuel, Robert, Frédéric
core   +4 more sources

FOURTH ORDER GEOMETRIC EVOLUTION EQUATIONS [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2010
Abstract
openaire   +1 more source

Fourth Order Diffusion Equations with Increasing Entropy

open access: yesEntropy, 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
doaj   +1 more source

Energy in Fourth-Order Gravity

open access: yesAnnales Henri Poincaré
5 figures Update on the 17/07/22: correcting typos, streamlining the paper, taking into account/answering interesting questions asked to the authors during conferences Update on the 23/01/2024 : correction of typos, modifications suggested by reviewers for ...
R. Avalos, J. H. Lira, N. Marque
openaire   +3 more sources

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