Results 31 to 40 of about 58,000 (272)
Green's functions and existence of solutions of nonlinear fractional implicit difference equations with Dirichlet boundary conditions [PDF]
Opuscula MathematicaThis 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
Asymptotic extraction approach for antennas in a multilayered spherical media [PDF]
, 2010 An efficient algorithm is introduced to enhance the convergence of dyadic Green's functions (DGF) in a layered spherical media where asymptotic expressions have been developed. The formulated expressions involve an infinite series of spherical eigenmodes
Khamas, S.K.
core +1 more source
Landau quantized dynamics and spectra for group-VI dichalcogenides, including a model quantum wire
AIP 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
Journal 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
Perturbation of infinite networks of resistors [PDF]
, 2001 The resistance between arbitrary nodes of infinite networks of resistors is studied when the network is perturbed by removing one bond from the perfect lattice. A connection is made between the resistance and the lattice Green's function of the perturbed
Cserti, József +2 more
core +2 more sources
Confined coherence and analytic properties of Green's functions
, 1997 A simple model of noninteracting electrons with a separable one-body potential is used to discuss the possible pole structure of single particle Green's functions for fermions on unphysical sheets in the complex frequency plane as a function of the ...
A. Luther +7 more
core +1 more source
SciPost 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
Universal behavior of quantum Green's functions
, 2003 We consider a general one-particle Hamiltonian H = - \Delta_r + u(r) defined in a d-dimensional domain. The object of interest is the time-independent Green function G_z(r,r') = .
Bielinska-Waz D. +12 more
core +1 more source
Green's function for the wavized Maxwell fish-eye problem
, 2011 Unique transformation properties under the hyperspherical inversion of a partial differential equation describing a stationary scalar wave in an $N$-dimensional ($N\geqslant2$) Maxwell fish-eye medium are exploited to construct a closed form of the Green'
Szmytkowski, Radosław
core +1 more source
Calculation of Green's Function for Poisson's Equation in Plane Polar Coordinates
Trends in Computational and Applied MathematicsA 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