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Discrete generator coordinate: Symmetry restoration in finite-dimensional spaces
(1999-12-01)
Group theoretical-based techniques and fundamental results from number theory are used in order to allow for the construction of exact projectors in finite-dimensional spaces. These operators are shown to make use only of ...
Discrete generator coordinate: Symmetry restoration in finite-dimensional spaces
(1999-12-01)
Group theoretical-based techniques and fundamental results from number theory are used in order to allow for the construction of exact projectors in finite-dimensional spaces. These operators are shown to make use only of ...
Polynomial expansion of basis sets: Alternatives to fully optimized exponents
(Elsevier Science BvAmsterdamHolanda, 2006)
Magnetohydrodynamic equations (MHD) generation code
(Centro de Investigaciones en Matemática Pura y Aplicada (CIMPA) y Escuela de Matemática, San José, Costa Rica., 2016)
Adapted Gaussian basis sets for atoms from Li through Xe generated with the generator coordinate Hartree-Fock method
(2001-12)
Utiliza-se o método coordenada geradora Hartree-Fock para gerar bases Gaussianas adaptadas para os átomos de Li (Z=3) até Xe (Z=54). Neste método, integram-se as equações de Griffin-Hill-Wheeler-Hartree-Fock através da ...
Gravitational field calculation in spherical coordinates using variable densities in depth
(Wiley Blackwell Publishing, Inc, 2019-09)
We present a new methodology to compute the gravitational fields generated by tesseroids (spherical prisms) whose density varies with depth according to an arbitrary continuous function. It approximates the gravitational ...
Magnetohydrodynamic equations (MHD) generation codeCódigo de generación de ecuaciones magnetohidrodinámicas (MHD)
(Universidad de Costa Rica, Centro de Investigación en Matemática Pura y Aplicada (CIMPA), 2017)
Discrete spectrum of quantum Hall effect Hamiltonians II: Periodic edge potentials
(IOS PRESS, 2012)
We consider the unperturbed operator H-0 := (-i del-A)(2) + W, self-adjoint in L-2(R-2). Here A is a magnetic potential which generates a constant magnetic field b > 0, and the edge potential W = (W) over bar is a T-periodic ...
Ultimate bound minimisation by state feedback in discrete-time switched linear systems under arbitrary switching
(Elsevier, 2016-08)
We present a novel state feedback design method for perturbed discrete-time switched linear systems. The method aims at achieving (a) closed-loop stability under arbitrary switching and (b) minimisation of ultimate bounds ...