Results 11 to 20 of about 8,328 (212)

Far-field approximations to the derivatives of Green’s function for the Ffowcs Williams and Hawkings equation

open access: yesAdvances in Aerodynamics, 2022
The surface correction to the quadrupole source term of the Ffowcs Williams and Hawkings integral in the frequency domain suffers from the computation of high-order derivatives of Green’s function. The far-field approximations to the derivatives of Green’
Zhiteng Zhou   +3 more
doaj   +3 more sources

Constant-Sign Green’s Function of a Second-Order Perturbed Periodic Problem

open access: yesAxioms, 2022
In this paper, we were interested in obtaining the exact expression and studying the regions of constant sign of Green’s function related to a second-order perturbed periodic problem coupled with integral boundary conditions at the extremes of the ...
Alberto Cabada   +2 more
doaj   +2 more sources

ON GREEN’S FUNCTION OF DARBOUX PROBLEM FOR HYPERBOLIC EQUATION

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2021
It is well known that the Darboux problem for the hyperbolic equation is correct, both in the senseof classical and generalized solutions. An integral form of the solution of the Darboux problem ina characteristic triangle for a general two-dimensional ...
M. A. Sadybekov, B. Derbissaly
doaj   +3 more sources

Machine Learning-Based Recursive Prediction and Application of Green’s Function of Water-Wave Radiation and Diffraction

open access: yesJournal of Marine Science and Engineering
The frequency-domain free-surface Green’s function method is widely used in solving ship hydrodynamic problems, with its core challenge lying in the computation of the Green’s function and its partial derivatives.
Minmin Zheng   +5 more
doaj   +2 more sources

On green’s function of second darboux problem for hyperbolic equation

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2022
A definition and justify a method for constructing the Green’s function of the second Darboux problem for a two-dimensional linear hyperbolic equation of the second order in a characteristic triangle is given.
B. Derbissaly
doaj   +1 more source

Statistics of Green's functions on a disordered Cayley tree and the validity of forward scattering approximation

open access: yesSciPost Physics, 2022
The accuracy of the forward scattering approximation for two-point Green's functions of the Anderson localization model on the Cayley tree is studied.
Pavel A. Nosov, Ivan M. Khaymovich, Andrey Kudlis, Vladimir E. Kravtsov
doaj   +1 more source

On Green’s function of Cauchy–Dirichlet problem for hyperbolic equation in a quarter plane

open access: yesBoundary Value Problems, 2021
The definition of a Green’s function of a Cauchy–Dirichlet problem for the hyperbolic equation in a quarter plane is given. Its existence and uniqueness have been proven. Representation of the Green’s function is given.
Makhmud Sadybekov, Bauyrzhan Derbissaly
doaj   +1 more source

Photoemission spectral functions from the three-body Green's function

open access: yesSciPost Physics, 2022
We present an original strategy for the calculation of direct and inverse photo-emission spectra from first principles. The main goal is to go beyond the standard Green's function approaches, such as the $GW$ method, in order to find a good description
Gabriele Riva, Timothée Audinet, Matthieu Vladaj, Pina Romaniello, J. Arjan Berger
doaj   +1 more source

Green’s function for the semi-infinite strip in terms of an improper integral [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2020
In this paper Green’s function for the semi-infinite strip (which is the two-dimensional Green’s function for a groove of infinite depth and length) is determined in the form of an improper integral, as opposed to the standard summation form ...
Filipović Dragan, Dlabač Tatijana
doaj   +1 more source

Calculation of the Green's function on near-term quantum computers

open access: yesPhysical Review Research, 2020
The Green's function plays a crucial role when studying the nature of quantum many-body systems, especially strongly correlated systems. Although the development of quantum computers in the near future may enable us to compute energy spectra of ...
Suguru Endo   +2 more
doaj   +1 more source

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