Results 31 to 40 of about 16,850,393 (382)

Efficient implementation of the nonequilibrium Green function method for electronic transport calculations [PDF]

open access: yes, 2009
An efficient implementation of the nonequilibrium Green function method combined with the densityfunctional theory, using localized pseudoatomic orbitals, is presented for electronic transport calculations of a system connected with two leads under a ...
T. Ozaki, K. Nishio, H. Kino
semanticscholar   +1 more source

Multipole matrix elements of Green function of Laplace equation [PDF]

open access: yes, 2015
Multipole matrix elements of Green function of Laplace equation are calculated. The multipole matrix elements of Green function in electrostatics describe potential on a sphere which is produced by a charge distributed on the surface of a different ...
Górka, Przemysław, Makuch, Karol
core   +1 more source

New Hermite Hadamard type inequalities for twice differentiable convex mappings via Green function and applications

open access: yesMoroccan Journal of Pure and Applied Analysis, 2016
We derive some Hermite Hamamard type integral inequalities for functions whose second derivatives absolute value are convex. Some eror estimates for the trapezoidal formula are obtained. Finally, some natural applications to special means of real numbers
Erden Samet, Sarikaya Mehmet Zeki
doaj   +1 more source

Influence of an L^{p}-perturbation on Hardy-Sobolev inequality with singularity a curve [PDF]

open access: yesOpuscula Mathematica, 2021
We consider a bounded domain \(\Omega\) of \(\mathbb{R}^N\), \(N \geq 3\), \(h\) and \(b\) continuous functions on \(\Omega\). Let \(\Gamma\) be a closed curve contained in \(\Omega\).
Idowu Esther Ijaodoro   +1 more
doaj   +1 more source

Remarks on radial symmetry and monotonicity for solutions of semilinear higher order elliptic equations

open access: yesMathematics in Engineering, 2022
Half a century after the appearance of the celebrated paper by Serrin about overdetermined boundary value problems in potential theory and related symmetry properties, we reconsider semilinear polyharmonic equations under Dirichlet boundary conditions in
Filippo Gazzola, Gianmarco Sperone
doaj   +1 more source

A note on the exact Green function for a quantum system decorated by two or more impurities [PDF]

open access: yes, 2019
Producción CientíficaThe exact Green function is constructed for a quantum system, with known Green function, which is decorated by two delta function impurities.
Glasser, M. Lawrence
core   +1 more source

From a local Green function to molecular charge transport [PDF]

open access: yes, 2003
A local-orbital based ab initio approach to obtain the Green function for large heterogeneous systems is developed. First a Green function formalism is introduced based on exact diagonalization.
Albrecht   +40 more
core   +4 more sources

Reconstruction of initial heat distribution via Green function method

open access: yesElectronic Research Archive, 2022
In this paper, layer potential techniques are investigated for solving the thermal diffusion problem. We construct the Green function to get the analytic solution.
Xiaoping Fang   +2 more
doaj   +1 more source

Four-point Green functions in the Schwinger Model [PDF]

open access: yes, 1998
The evaluation of the 4-point Green functions in the 1+1 Schwinger model is presented both in momentum and coordinate space representations. The crucial role in our calculations play two Ward identities: i) the standard one, and ii) the chiral one.
A. Bassetto   +33 more
core   +2 more sources

Dominance of forest structural traits in shaping soil bacterial community assembly in Beijing’s urban forests

open access: yesFrontiers in Soil Science
Urban forests constitute vital ecological interfaces between built environments and natural systems, yet the mechanisms driving soil microbial community assembly in these ecosystems remain poorly understood.
Yi Zheng   +10 more
doaj   +1 more source

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