Results 11 to 20 of about 237,124 (270)

Semiclassical equations for weakly inhomogeneous cosmologies [PDF]

open access: yesPhysical Review D, 1994
The in-in effective action formalism is used to derive the semiclassical correction to Einstein's equations due to a massless scalar quantum field conformally coupled to small gravitational perturbations in spatially flat cosmological models.
Campos, Antonio   +1 more
openaire   +4 more sources

The Wiener–Hopf Equation with Probability Kernel and Submultiplicative Asymptotics of the Inhomogeneous Term

open access: yesAppliedMath, 2022
We consider the inhomogeneous Wiener–Hopf equation whose kernel is a nonarithmetic probability distribution with positive mean. The inhomogeneous term behaves like a submultiplicative function.
Mikhail Sgibnev
doaj   +1 more source

The Fourier analysis in inhomogeneous media

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023
In the paper, the definition and basic properties of the Fourier transform (FT) are discussed. It has been shown with specific examples that integral solutions of the model inhomogeneous equation, the nonstationary Cauchy problem on an inhomogeneous ...
Gnevyshev Vladimir, Belonenko Tatyana
doaj   +1 more source

Analysis of the inhomogeneous Willmore equation

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 2023
We study a class of fourth-order geometric problems modeling Willmore surfaces, conformally constrained Willmore surfaces, isoperimetrically constrained Willmore surfaces, and bi-harmonic surfaces in the sense of Chen, among others. We prove several local energy estimates and derive a global gap lemma.
Yann Bernard   +2 more
openaire   +4 more sources

Analytical solutions of linear inhomogeneous fractional differential equation with continuous variable coefficients

open access: yesAdvances in Difference Equations, 2019
This paper proposes a series-representations for the solution of initial value problems of linear inhomogeneous fractional differential equation with continuous variable coefficients.
Sunae Pak   +3 more
doaj   +1 more source

Monodromy of inhomogeneous Picard-Fuchs equations [PDF]

open access: yesCommunications in Number Theory and Physics, 2014
We study low-degree curves on one-parameter Calabi-Yau hypersurfaces, and their contribution to the space-time superpotential in a superstring compactification with D-branes. We identify all lines that are invariant under at least one permutation of the homogeneous variables, and calculate the inhomogeneous Picard-Fuchs equation.
Jefferson, Ro, Walcher, Johannes
openaire   +2 more sources

Spectral and formal stability criteria of spatially inhomogeneous stationary solutions to the Vlasov equation for the Hamiltonian mean-field model [PDF]

open access: yes, 2013
Stability of spatially inhomogeneous solutions to the Vlasov equation is investigated for the Hamiltonian mean-field model to provide the spectral stability criterion and the formal stability criterion in the form of necessary and sufficient conditions ...
Ogawa, Shun
core   +2 more sources

Inhomogeneous Strichartz estimates for Schrödinger's equation [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2016
Foschi and Vilela in their independent works (\cite{F},\cite{V}) showed that the range of $(1/r,1/\widetilde{r})$ for which the inhomogeneous Strichartz estimate $ \big\|\int_{0}^{t}e^{i(t-s) }F(\cdot,s)ds\big\|_{L^{q}_tL^{r}_x} \lesssim \|F\|_{L^{\widetilde{q}'}_tL^{\widetilde{r}'}_x} $ holds for some $q,\widetilde{q}$ is contained in the closed ...
Koh, Youngwoo, Seo, Ihyeok
openaire   +3 more sources

On the solution of the inhomogeneous polyharmonic equation and the inhomogeneous helmholtz equation

open access: yesDifferential Equations, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Karachik V.V., Antropova N.A.
openaire   +4 more sources

Using a Divergence Regularization Method to Solve an Ill-Posed Cauchy Problem for the Helmholtz Equation

open access: yesAbstract and Applied Analysis, 2022
The ill-posed Helmholtz equation with inhomogeneous boundary deflection in a Hilbert space is regularized using the divergence regularization method (DRM).
Benedict Barnes   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy