Results 21 to 30 of about 838,704 (270)
Oscillation of noncanonical fourth-order dynamic equations
Applied Mathematics in Science and Engineering, 2023 We present two sufficient conditions for the oscillatory behaviour of a class of noncanonical fourth-order dynamic equations on arbitrary time scales. An illustrative example is included to show that new criteria improve related results reported in the ...
Qingmin Liu +3 more
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Black hole shadows in fourth-order conformal Weyl gravity [PDF]
, 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
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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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Comparison theorems for fourth order differential equations
International Journal of Mathematics and Mathematical Sciences, 1986 This paper establishes an apparently overlooked relationship between the pair of fourth order linear equations yiv−p(x)y=0 and yiv+p(x)y=0, where p is a positive, continuous function defined on [0,∞).
Garret J. Etgen, Willie E. Taylor
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Improved Conditions for Oscillation of Functional Nonlinear Differential Equations
Mathematics, 2020 The aim of this work is to study oscillatory properties of a class of fourth-order delay differential equations. New oscillation criteria are obtained by using generalized Riccati transformations.
Omar Bazighifan, Mihai Postolache
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Asymptotic analysis for fourth order Paneitz equations with critical growth [PDF]
, 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
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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 GEOMETRIC EVOLUTION EQUATIONS [PDF]
Bulletin of the Australian Mathematical Society, 2010 Abstract
openaire +1 more source
Regge Calculus as a Fourth Order Method in Numerical Relativity [PDF]
, 1995 The convergence properties of numerical Regge calculus as an approximation to continuum vacuum General Relativity is studied, both analytically and numerically.
Barrett J W +15 more
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Compactness of solutions to some geometric fourth-order equations [PDF]
, 2005 We prove compactness of solutions to some fourth order equations with exponential nonlinearities on four manifolds. The proof is based on a refined bubbling analysis, for which the main estimates are given in integral form.
Malchiodi, Andrea
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