[PDF][PDF] A modified Runge-Kutta-Nyström method by using phase lag properties for the numerical solution of orbital problems

DF Papadopoulos, TE Simos - Applied Mathematics & …, 2013 - naturalspublishing.com
In this paper, a new modified Runge-Kutta-Nyström method of third algebraic order is
developed. The new modified RKN method has phase-lag and amplification error of order …

[PDF][PDF] On the explicit four-step methods with vanished phase-lag and its first derivative

TE Simos - Applied Mathematics & Information Sciences, 2014 - naturalspublishing.com
In the present paper, we will investigate a family of explicit four-step methods first introduced
by Anastassi and Simos [1] for the case of vanishing of phase-lag and its first derivative …

Optimizing a hybrid two‐step method for the numerical solution of the Schrödinger equation and related problems with respect to phase‐lag

TE Simos - Journal of Applied Mathematics, 2012 - Wiley Online Library
We use a methodology of optimization of the efficiency of a hybrid two‐step method for the
numerical solution of the radial Schrödinger equation and related problems with periodic or …

A new high algebraic order efficient finite difference method for the solution of the Schrödinger equation

M Dong, TE Simos - Filomat, 2017 - doiserbia.nb.rs
The development of a new five-stages symmetric two-step method of fourteenth algebraic
order with vanished phase-lag and its first, second, third and fourth derivatives is analyzed in …

A new two stage symmetric two-step method with vanished phase-lag and its first, second, third and fourth derivatives for the numerical solution of the radial …

Z Zhou, TE Simos - Journal of Mathematical Chemistry, 2016 - Springer
A two stage symmetric two-step method with vanished phase-lag and its first, second, third
and fourth derivatives with low computational cost is developed in this paper for the first time …

A Runge–Kutta type implicit high algebraic order two-step method with vanished phase-lag and its first, second, third and fourth derivatives for the numerical solution …

K Mu, TE Simos - Journal of Mathematical Chemistry, 2015 - Springer
A Runge–Kutta type (four stages) eighth algebraic order two-step method with phase-lag
and its first, second, third and fourth derivatives equal to zero is produced in this paper. We …

A new family of two stage symmetric two-step methods with vanished phase-lag and its derivatives for the numerical integration of the Schrödinger equation

F Hui, TE Simos - Journal of Mathematical Chemistry, 2015 - Springer
A family of two stage low computational cost symmetric two-step methods with vanished
phase-lag and its derivatives is developed in this paper. More specifically we produce: a two …

New stable closed Newton‐Cotes trigonometrically fitted formulae for long‐time integration

TE Simos - Abstract and Applied Analysis, 2012 - Wiley Online Library
The closed Newton‐Cotes differential methods of high algebraic order for small number of
function evaluations are unstable. In this work, we propose a new closed Newton‐Cotes …

Evolutionary generation of high‐order, explicit, two‐step methods for second‐order linear IVPs

TE Simos, C Tsitouras - Mathematical Methods in the Applied …, 2017 - Wiley Online Library
In this paper, we consider the integration of systems of second‐order linear inhomogeneous
initial value problems with constant coefficients. Hybrid Numerov methods are used that are …

An economical eighth-order method for the approximation of the solution of the Schrödinger equation

Z Wang, TE Simos - Journal of Mathematical Chemistry, 2017 - Springer
In this paper we introduce, for the first time in the literature, a three-stages two-step method.
The new algorithm has the following characteristics:(1) it is a two-step algorithm,(2) it is a …