Results 21 to 30 of about 3,400 (193)

Extended sufficient semilocal convergence for the Secant method

open access: yesComputers & Mathematics with Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cho, Yeol Je   +2 more
openaire   +1 more source

Accurate Hartree-Fock energy of extended systems using large Gaussian basis sets [PDF]

open access: yes, 2009
Calculating highly accurate thermochemical properties of condensed matter via wave function-based approaches (such as e.g. Hartree-Fock or hybrid functionals) has recently attracted much interest. We here present two strategies providing accurate Hartree-
Cristian V. Diaconu   +8 more
core   +1 more source

Semilocal convergence of the secant method under mild convergence conditions of differentiability

open access: yesComputers & Mathematics with Applications, 2002
In this work, we obtain a semilocal convergence result for the secant method in Banach spaces under mild convergence conditions. We consider a condition for divided differences which generalizes those usual ones, i.e., Lipschitz continuous and Hölder continuous conditions. Also, we obtain a result for uniqueness of solutions.
Hernández, M.A., Rubio, M.J.
openaire   +4 more sources

FDE-vdW: A van der Waals Inclusive Subsystem Density-Functional Theory [PDF]

open access: yes, 2014
We present a formally exact van der Waals inclusive electronic structure theory, called FDE-vdW, based on the Frozen Density Embedding formulation of subsystem Density-Functional Theory.
Eshuis, Henk   +2 more
core   +1 more source

Auxiliary point on the semilocal convergence of Newton’s method

open access: yesJournal of Computational and Applied Mathematics, 2019
We use an auxiliary point in the analysis of the semilocal convergence of Newton’smethod under center conditions on high order derivatives of the operator involved anduse the majorant principle of Kantorovich to do it.
J.A. Ezquerro, M.A. Hernández-Verón
openaire   +4 more sources

On the semilocal convergence of efficient Chebyshev–Secant-type methods

open access: yesJournal of Computational and Applied Mathematics, 2011
We introduce a three-step ChebyshevSecant-type method (CSTM) with high efficiency index for solving nonlinear equations in a Banach space setting. We provide a semilocal convergence analysis for (CSTM) using recurrence relations. Numerical examples validating our theoretical results are also provided in this study. © 2011 Elsevier B.V.
Argyros, null   +4 more
openaire   +4 more sources

Self-Dual Vortices in Abelian Higgs Models with Dielectric Function on the Noncommutative Plane [PDF]

open access: yes, 2014
We show that Abelian Higgs Models with dielectric function defined on the noncommutative plane enjoy self-dual vorticial solutions. By choosing a particular form of the dielectric function, we provide a family of solutions whose Higgs and magnetic fields
Fuertes, W. García, Guilarte, J. Mateos
core   +5 more sources

On Newton's method for subanalytic equations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2017
We present local and semilocal convergence results for Newton’s method in order to approximate solutions of subanalytic equations. The local convergence results are given under weaker conditions than in earlier studies such as [9], [10], [14], [15], [24]
Ioannis K. Argyros, Santhosh George
doaj   +2 more sources

Transmogrifying Fuzzy Vortices

open access: yes, 2004
We show that the construction of vortex solitons of the noncommutative Abelian-Higgs model can be extended to a critically coupled gauged linear sigma model with Fayet-Illiopolous D-terms.
A. Hanany   +24 more
core   +1 more source

A Finite-field Approach for $GW$ Calculations Beyond the Random Phase Approximation

open access: yes, 2018
We describe a finite-field approach to compute density response functions, which allows for efficient $G_0W_0$ and $G_0W_0\Gamma_0$ calculations beyond the random phase approximation.
Galli, Giulia   +3 more
core   +1 more source

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