[HTML][HTML] Frontiers in electronic structure theory

CD Sherrill - The Journal of chemical physics, 2010 - pubs.aip.org
Current and emerging research areas in electronic structure theory promise to greatly
extend the scope and quality of quantum chemical computations. Two particularly …

An economic prediction of the finer resolution level wavelet coefficients in electronic structure calculations

S Nagy, J Pipek - Physical Chemistry Chemical Physics, 2015 - pubs.rsc.org
In wavelet based electronic structure calculations, introducing a new, finer resolution level is
usually an expensive task, this is why often a two-level approximation is used with very fine …

An economic prediction of refinement coefficients in wavelet‐based adaptive methods for electron structure calculations

J Pipek, S Nagy - Journal of Computational Chemistry, 2013 - Wiley Online Library
The wave function of a many electron system contains inhomogeneously distributed spatial
details, which allows to reduce the number of fine detail wavelets in multiresolution analysis …

Galerkin method using optimized wavelet-Gaussian mixed bases for electronic structure calculations in quantum chemistry

DH Pham - 2017 - theses.hal.science
This thesis aims to be a contribution to numerical methods for ab initio molecular simulation,
and more specifically for electronic structure calculations by means of the …

Scale‐adaptive tensor algebra for local many‐body methods of electronic structure theory

DI Lyakh - International Journal of Quantum Chemistry, 2014 - Wiley Online Library
While the formalism of multiresolution analysis, based on wavelets and adaptive integral
representations of operators, is actively progressing in electronic structure theory (mostly on …

[PDF][PDF] Calculation of the numerical solution of two-dimensional Helmholtz equation

G Hegedűs, M Kuczmann - Acta Technica Jaurinensis, 2010 - acta.sze.hu
Many physical phenomena in acoustics, optics and electromagnetic wave theory are
governed by the scalar wave equation. In the frequency-domain, the wave equation is the so …

On wavelet based modeling of the nitrogen oxides emission and concentration due to road traffic in urban environment

S Nagy - Acta Technica Jaurinensis, 2015 - acta.sze.hu
Differential equations can be solved wavelet-based by representing the continuous
functions by their wavelet expansion coefficients and thus the corresponding differential …

[HTML][HTML] Optimization of the prediction of second refined wavelet coefficients in electron structure calculations

B Sziová, S Nagy, J Pipek - Open Physics, 2016 - degruyter.com
In wavelet-based solution of eigenvalue-type differential equations, like the Schrödinger
equation, refinement in the resolution of the solution is a costly task, as the number of the …

Error estimation of wavelet based modeling of electromagnetic waves in waveguides and resonators

A Fehér, S Nagy, J Pipek - The 2nd Middle East Conference on …, 2012 - ieeexplore.ieee.org
Wavelets provide an effective toolbox for solving differential equations by representing the
continuous functions by their wavelet expansion coefficients and the corresponding …

On the use of the boundary element method for electromagnetic numerical dosimetry

L Zilberti, O Bottauscio, M Chiampi - Acta Technica Jaurinensis, 2010 - acta.sze.hu
This paper proposes a summary of a research activity devoted to the development of
computational tools useful for the numerical investigation of human exposure to …