Results 21 to 30 of about 4,825 (248)

Green's functions and existence of solutions of nonlinear fractional implicit difference equations with Dirichlet boundary conditions [PDF]

open access: yesOpuscula Mathematica
This article is devoted to deduce the expression of the Green's function related to a general constant coefficients fractional difference equation coupled to Dirichlet conditions. In this case, due to the points where some of the fractional operators are
Alberto Cabada   +2 more
doaj   +1 more source

GREEN FUNCTIONS FOR TOPOLOGY CHANGE [PDF]

open access: yesInternational Journal of Modern Physics A, 2005
We explicitly calculate the Green functions describing quantum changes of topology in Friedmann-Lemaître-Robertson-Walker Universes whose spacelike sections are compact but endowed with distinct topologies. The calculations are performed using the long wavelength approximation at second order in the gradient expansion.
Martin, Jérôme   +2 more
openaire   +4 more sources

Landau quantized dynamics and spectra for group-VI dichalcogenides, including a model quantum wire

open access: yesAIP Advances, 2017
This work is concerned with the derivation of the Green’s function for Landau-quantized carriers in the Group-VI dichalcogenides. In the spatially homogeneous case, the Green’s function is separated into a Peierls phase factor and a translationally ...
Norman J. M. Horing
doaj   +1 more source

Analyticity and crossing symmetry of superstring loop amplitudes

open access: yesJournal of High Energy Physics, 2019
Bros, Epstein and Glaser proved crossing symmetry of the S-matrix of a theory without massless fields by using certain analyticity properties of the off-shell momentum space Green’s function in the complex momentum plane.
Corinne de Lacroix   +2 more
doaj   +1 more source

Calculation of Green's Function for Poisson's Equation in Plane Polar Coordinates

open access: yesTrends in Computational and Applied Mathematics
A new calculation of Green's function for Poisson's equation in plane polar coordinates is presented. The method consists in first calculating the solution to the simpler problem, but with the same Green's function, that is obtained with the ...
R. T. Couto
doaj   +1 more source

An estimate for the Green’s function [PDF]

open access: yesProceedings of the American Mathematical Society, 2014
Let K K be a continuum on
openaire   +2 more sources

Regularity of dynamical Green’s functions [PDF]

open access: yesTransactions of the American Mathematical Society, 2009
For meromorphic maps of complex manifolds, ergodic theory and pluripotential theory are closely related. In nice enough situations, dynamically defined Green’s functions give rise to invariant currents which intersect to yield measures of maximal entropy. ‘Nice enough’ is often a condition on the regularity of the Green’s function.
Diller, Jeffrey, Guedj, Vincent
openaire   +5 more sources

2D topological matter from a boundary Green's functions perspective: Faddeev-LeVerrier algorithm implementation

open access: yesSciPost Physics, 2022
Since the breakthrough of twistronics a plethora of topological phenomena in correlated systems has appeared. These devices can be typically analyzed in terms of lattice models using Green's function techniques. In this work we introduce a general method
Miguel Alvarado, Alfredo Levy Yeyati
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

The Neural Network Fitting Method for Green’s Function of Finite Water Depth

open access: yesJournal of Marine Science and Engineering
In marine hydrodynamics, the core of the boundary element method (BEM) lies in the numerical calculation of the free-surface Green’s function. With the rise of artificial intelligence, using neural networks to fit Green’s function has become a new trend,
Wenhui Xiong   +3 more
doaj   +1 more source

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