Numerical multistep methods for the efficient solution of quantum mechanics and related problems

ZA Anastassi, TE Simos - Physics Reports, 2009 - Elsevier
In this paper we present the recent development in the numerical integration of the
Schrödinger equation and related systems of ordinary differential equations with oscillatory …

Present state-of-the-art in exponential fitting. A contribution dedicated to Liviu Ixaru on his 70th birthday

B Paternoster - Computer Physics Communications, 2012 - Elsevier
The standard monograph in this area is the book Exponential fitting by Ixaru and Vanden
Berghe (Kluwer, Boston-Dordrecht-London, 2004) but a fresh look on things is necessary …

[HTML][HTML] The optimal exponentially-fitted Numerov method for solving two-point boundary value problems

D Hollevoet, M Van Daele, GV Berghe - Journal of computational and …, 2009 - Elsevier
Second order boundary value problems are solved by means of exponentially-fitted
Numerov methods. These methods, which depend on a parameter, can be constructed …

High order closed Newton-Cotes exponentially and trigonometrically fitted formulae as multilayer symplectic integrators and their application to the radial Schrödinger …

TE Simos - Journal of Mathematical Chemistry, 2012 - Springer
In this paper we study the connection between:(i) closed Newton-Cotes formulae of high
order,(ii) trigonometrically-fitted and exponentially-fitted differential methods,(iii) symplectic …

Fitted modifications of Runge–Kutta–Nyström pairs of orders 7 (5) for addressing oscillatory problems

VN Kovalnogov, MI Kornilova… - … Methods in the …, 2023 - Wiley Online Library
Runge–Kutta–Nyström pair of orders 7 (5) using six stages per step have been discovered
very recently. Here we modify four of its weights. The resulting method integrates exactly the …

A computational approach to solving some applied rigid second-order problems

J Sunday, A Shokri, NM Kamoh, BC Dang… - … and Computers in …, 2024 - Elsevier
When a differential equation exhibits chaos, stiffness, damping and/or oscillation in its
solution component, such a differential equation is termed rigid. Over the years, solving such …

[HTML][HTML] A family of functionally-fitted third derivative block Falkner methods for solving second-order initial-value problems with oscillating solutions

H Ramos, R Abdulganiy, R Olowe, S Jator - Mathematics, 2021 - mdpi.com
One of the well-known schemes for the direct numerical integration of second-order initial-
value problems is due to Falkner. This paper focuses on the construction of a family of …

[HTML][HTML] Exponentially fitted two-step hybrid methods for y ″= f (x, y)

R D'Ambrosio, E Esposito, B Paternoster - Journal of Computational and …, 2011 - Elsevier
It is the purpose of this paper to derive two-step hybrid methods for y ″= f (x, y), with
oscillatory or periodic solutions, specially tuned to the behaviour of the solution, through the …

A two-step method with vanished phase-lag and its first two derivatives for the numerical solution of the Schrödinger equation

TE Simos - Journal of mathematical chemistry, 2011 - Springer
In this paper we introduce a new explicit hybrid Numerov-type method. This method is of
fourth algebraic order and has phase-lag and its first two derivatives equal to zero. We …

[HTML][HTML] Time-fractional nonlinear Swift-Hohenberg equation: analysis and numerical simulation

WK Zahra, MA Nasr, D Baleanu - Alexandria Engineering Journal, 2020 - Elsevier
In this paper, a new scheme based on the exponential fitting technique is presented for
solving the nonlinear time-fractional Swift-Hohenberg equation, where the first and second …