Results 41 to 50 of about 10,905,906 (292)
Energy in Fourth-Order Gravity
Annales Henri Poincaré5 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
Isoperimetric inequalities of the fourth order Neumann eigenvalues
Journal of Inequalities and Applications, 2020 In this paper, we obtain some isoperimetric inequalities for the first ( n − 1 ) $(n-1)$ eigenvalues of the fourth order Neumann Laplacian on bounded domains in an n-dimensional Euclidean space. Our result supports strongly the conjecture of Chasman.
Yanlin Deng, Feng Du
doaj +1 more source
Axioms, 2023 This paper presents an investigation into the qualitative behavior of solutions for a specific class of fourth-order half-linear neutral differential equations.
Hail S. Alrashdi +4 more
doaj +1 more source
Fourth-order supergravity [PDF]
Nuclear Physics B, 1986 Abstract Starting from a manifestly supersymmetric superfield formalism, we construct the lagrangian of fourth-order supergravity in component field form. The super-Gauss-Bonnet theorem can be used to eliminate one of the three terms in the superfield lagrangian. We verify the super-Gauss- Bonnet theorem explicitly or the bosonic part of the theory.
openaire +4 more sources
Envelope instability and the fourth order resonance
Physical Review Special Topics. Accelerators and Beams, 2014 The well-known envelope instability or the second order even collective mode [I. Hofmann, Phys. Rev. E 57, 4 (1998)] and the fourth order resonance 4σ=360° due to the nonlinear space charge effect in high intensity beams have been studied previously.
Chao Li, Ya Liang Zhao
doaj +1 more source
Two positive solutions for nonlinear fourth-order elastic beam equations
Electronic Journal of Qualitative Theory of Differential Equations, 2019 The aim of this paper is to study the existence of at least two non-trivial solutions to a boundary value problem for fourth-order elastic beam equations given by \begin{align*} u^{(4)}+Au''+Bu = \lambda f(x,u) \quad \text{in } [0,1],\\ u(0) =u(1)
Giuseppina D'Aguì +2 more
doaj +1 more source
On the oscillation of nonlinear delay differential equations and their applications
Open Physics, 2021 The oscillation of nonlinear differential equations is used in many applications of mathematical physics, biological and medical physics, engineering, aviation, complex networks, sociophysics and econophysics. The goal of this study is to create some new
Bazighifan Omar, Askar Sameh
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess +5 more
wiley +1 more source
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
Journal of Nuclear EngineeringThis work highlights the major benefits of applying the “Fourth-Order Best-Estimate Predicted Results with Reduced Uncertainties Predictive Modeling” (4th-BERRU-PM) methodology to quantify and remedy the impact of possibly faulty computational or ...
Dan Gabriel Cacuci
doaj +1 more source