[HTML][HTML] An eight-step semi-embedded predictor–corrector method for orbital problems and related IVPs with oscillatory solutions for which the frequency is unknown

GA Panopoulos, TE Simos - Journal of Computational and Applied …, 2015 - Elsevier
Our new linear symmetric semi-embedded predictor–corrector method (SEPCM) presented
here is based on the multistep symmetric method of Quinlan and Tremaine (1990), with eight …

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 …

Explicit exponentially fitted two-step hybrid methods of high order for second-order oscillatory IVPs

JM Franco, L Rández - Applied Mathematics and Computation, 2016 - Elsevier
The construction of exponentially fitted (EF) two-step hybrid methods for the numerical
integration of oscillatory second-order IVPs is analyzed. These methods integrate exactly …

[HTML][HTML] Adapted numerical methods for advection–reaction–diffusion problems generating periodic wavefronts

R D'Ambrosio, M Moccaldi, B Paternoster - Computers & Mathematics with …, 2017 - Elsevier
The paper presents an adapted numerical integration for advection–reaction–diffusion
problems. The numerical scheme, exploiting the a-priori knowledge of the qualitative …

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 …

Exponentially fitted two-step peer methods for oscillatory problems

D Conte, F Mohammadi, L Moradi… - … and Applied Mathematics, 2020 - Springer
This paper concerns the construction of a general class of exponentially fitted two-step
implicit peer methods for the numerical integration of Ordinary Differential Equations (ODEs) …

Numerical solution of a diffusion problem by exponentially fitted finite difference methods

R D'Ambrosio, B Paternoster - SpringerPlus, 2014 - Springer
This paper is focused on the accurate and efficient solution of partial differential differential
equations modelling a diffusion problem by means of exponentially fitted finite difference …

[HTML][HTML] Revised exponentially fitted Runge–Kutta–Nyström methods

R D'Ambrosio, B Paternoster, G Santomauro - Applied Mathematics Letters, 2014 - Elsevier
It is the purpose of this paper to revise the exponential fitting technique for the numerical
solution of special second order ordinary differential equations (ODEs) y ″= f (x, y), with …

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] Exponentially fitted singly diagonally implicit Runge–Kutta methods

R D'Ambrosio, B Paternoster - Journal of Computational and Applied …, 2014 - Elsevier
It is the purpose of this paper to derive diagonally implicit exponentially fitted (EF) Runge–
Kutta methods for the numerical solution of initial value problems based on first order …