Charalampos Tsitouras

According to our database, Charalampos Tsitouras authored at least 36 papers between 1990 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Runge-Kutta pairs of orders 9(8) for use in quadruple precision computations.

Vladislav N. Kovalnogov, Ruslan V. Fedorov, Tamara V. Karpukhina, Theodore E. Simos, Charalampos Tsitouras

Numer. Algorithms, April, 2024

Economical handling of Runge-Kutta-Nyström step rejection.

Vladislav N. Kovalnogov, Ruslan V. Fedorov, M. T. Karpukhina, M. I. Kornilova, T. E. Simos, Charalampos Tsitouras

J. Comput. Appl. Math., March, 2024

2023

Runge-Kutta-Nyström methods of eighth order for addressing Linear Inhomogeneous problems.

Vladislav N. Kovalnogov, Ruslan V. Fedorov, M. T. Karpukhina, M. I. Kornilova, T. E. Simos, Charalampos Tsitouras

J. Comput. Appl. Math., 2023

2022

On high order Runge-Kutta-Nyström pairs.

Theodore E. Simos, Charalampos Tsitouras

J. Comput. Appl. Math., 2022

2021

Efficiently inaccurate approximation of hyperbolic tangent used as transfer function in artificial neural networks.

T. E. Simos, Charalampos Tsitouras

Neural Comput. Appl., 2021

Evolutionary derivation of Runge-Kutta pairs for addressing inhomogeneous linear problems.

T. E. Simos, Charalampos Tsitouras

Numer. Algorithms, 2021

2019

Explicit Runge-Kutta methods for starting integration of Lane-Emden problem.

Charalampos Tsitouras

Appl. Math. Comput., 2019

2018

Bounds for variable degree rational <i>L</i>_∞ approximations to the matrix exponential.

Charalampos Tsitouras, Ioannis Th. Famelis

Appl. Math. Comput., 2018

2017

Phase-fitted Runge-Kutta pairs of orders 8(7).

Charalampos Tsitouras, Ioannis Th. Famelis, T. E. Simos

J. Comput. Appl. Math., 2017

Symbolic derivation of Runge-Kutta-Nyström type order conditions and methods for solving y'''=f(x, y).

Ioannis Th. Famelis, Charalampos Tsitouras

Appl. Math. Comput., 2017

2016

On modifications of Runge-Kutta-Nyström methods for solving y(4) = f(x, y).

Ioannis Th. Famelis, Charalampos Tsitouras

Appl. Math. Comput., 2016

2014

Bounds for variable degree rational L_∞ approximations to the matrix cosine.

Charalampos Tsitouras, Vasilios N. Katsikis

Comput. Phys. Commun., 2014

On fitted modifications of Runge-Kutta-Nyström pairs.

Charalampos Tsitouras

Appl. Math. Comput., 2014

2012

Enumeration of Rosenberg-type hypercompositional structures defined by binary relations.

Charalampos Tsitouras, Christos G. Massouros

Eur. J. Comb., 2012

2011

On modified Runge-Kutta trees and methods.

Charalampos Tsitouras, Ioannis Th. Famelis, T. E. Simos

Comput. Math. Appl., 2011

Runge-Kutta pairs of order 5(4) satisfying only the first column simplifying assumption.

Charalampos Tsitouras

Comput. Math. Appl., 2011

Hybrid Hamilton-Webster and the Greek apportionment.

Charalampos Tsitouras

Appl. Math. Comput., 2011

Greatest remainder bi-proportional rounding and the Greek parliamentary elections of 2007.

Charalampos Tsitouras

Appl. Math. Comput., 2011

2010

Stress concentration analysis of interfacial micro-structural cracks under internal singular loading sources.

Dimitrios G. Pavlou, F. I. Mavrothanasis, Charalampos Tsitouras, M. G. Pavlou, S. Avlonitis, V. N. Vlachakis

J. Comput. Methods Sci. Eng., 2010

On enumeration of hypergroups of order 3.

Charalampos Tsitouras, Christos G. Massouros

Comput. Math. Appl., 2010

2007

Runge-Kutta interpolants for high precision computations.

Charalampos Tsitouras

Numer. Algorithms, 2007

Phase-fitted Numerov type methods.

Athanassios G. Bratsos, Ioannis Th. Famelis, A. Kollias, Charalampos Tsitouras

Appl. Math. Comput., 2007

2004

Symbolic derivation of Runge-Kutta order conditions.

Ioannis Th. Famelis, S. N. Papakostas, Charalampos Tsitouras

J. Symb. Comput., 2004

2003

Zero Dissipative, Explicit Numerov-Type Methods for Second Order IVPs with Oscillating Solutions.

Tom E. Simos, Ioannis Th. Famelis, Charalampos Tsitouras

Numer. Algorithms, 2003

Runge-Kutta Pairs for Scalar Autonomous Initial Value Problems.

George Papageorgiou, Charalampos Tsitouras

Int. J. Comput. Math., 2003

Families of explicit two-step methods for integration of problems with oscillating solutions.

Charalampos Tsitouras

Appl. Math. Comput., 2003

2002

Neural networks with multidimensional transfer functions.

Charalampos Tsitouras

IEEE Trans. Neural Networks, 2002

High algebraic, high phase-lag order embedded Numerov-type methods for oscillatory problems.

Charalampos Tsitouras, T. E. Simos

Appl. Math. Comput., 2002

2001

Dissipative high phase-lag order methods.

Charalampos Tsitouras

Appl. Math. Comput., 2001

1999

Cheap Error Estimation for Runge-Kutta Methods.

Charalampos Tsitouras, S. N. Papakostas

SIAM J. Sci. Comput., 1999

High Phase-Lag-Order Runge-Kutta and Nyström Pairs.

S. N. Papakostas, Charalampos Tsitouras

SIAM J. Sci. Comput., 1999

1998

A P-stable singly diagonally implicit Runge-Kutta-Nyström method.

George Papageorgiou, Ioannis Th. Famelis, Charalampos Tsitouras

Numer. Algorithms, 1998

Explicit high order methods for the numerical integration of periodic initial-value problems.

Charalampos Tsitouras, Theodore E. Simos

Appl. Math. Comput., 1998

1997

Continuous extensions to high order runge-kutta methods.

George Papageorgiou, Charalampos Tsitouras

Int. J. Comput. Math., 1997

1993

Runge-Kutta pairs for periodic initial value problems.

George Papageorgiou, Charalampos Tsitouras, S. N. Papakostas

Computing, 1993

1990

Runge-Kutta interpolants based on values from two successive integration steps.

Charalampos Tsitouras, George Papageorgiou

Computing, 1990