Runge-Kutta interpolants based on values from two successive integration steps. - Charalampos Tsitouras; George Papageorgiou (Computing, 1990)

Runge-Kutta pairs for periodic initial value problems. - George Papageorgiou; Charalampos Tsitouras; S. N. Papakostas (Computing, 1993)

Continuous extensions to high order runge-kutta methods. - George Papageorgiou; Charalampos Tsitouras (Int. J. Comput. Math., 1997)

Explicit high order methods for the numerical integration of periodic initial-value problems. - Charalampos Tsitouras; Theodore E. Simos (Appl. Math. Comput., 1998)

A P-stable singly diagonally implicit Runge-Kutta-Nyström method. - George Papageorgiou; Ioannis Th. Famelis; Charalampos Tsitouras (Numer. Algorithms, 1998)

High Phase-Lag-Order Runge-Kutta and Nyström Pairs. - S. N. Papakostas; Charalampos Tsitouras (SIAM J. Sci. Comput., 1999)

Cheap Error Estimation for Runge-Kutta Methods. - Charalampos Tsitouras; S. N. Papakostas (SIAM J. Sci. Comput., 1999)

Dissipative high phase-lag order methods. - Charalampos Tsitouras (Appl. Math. Comput., 2001)

High algebraic, high phase-lag order embedded Numerov-type methods for oscillatory problems. - Charalampos Tsitouras; T. E. Simos (Appl. Math. Comput., 2002)

Neural networks with multidimensional transfer functions. - Charalampos Tsitouras (IEEE Trans. Neural Networks, 2002)

Families of explicit two-step methods for integration of problems with oscillating solutions. - Charalampos Tsitouras (Appl. Math. Comput., 2003)

Runge-Kutta Pairs for Scalar Autonomous Initial Value Problems. - George Papageorgiou; Charalampos Tsitouras (Int. J. Comput. Math., 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)

Symbolic derivation of Runge-Kutta order conditions. - Ioannis Th. Famelis; S. N. Papakostas; Charalampos Tsitouras (J. Symb. Comput., 2004)

Phase-fitted Numerov type methods. - Athanassios G. Bratsos; Ioannis Th. Famelis; A. Kollias; Charalampos Tsitouras (Appl. Math. Comput., 2007)

Runge-Kutta interpolants for high precision computations. - Charalampos Tsitouras (Numer. Algorithms, 2007)

On enumeration of hypergroups of order 3. - Charalampos Tsitouras; Christos G. Massouros (Comput. Math. Appl., 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)

Greatest remainder bi-proportional rounding and the Greek parliamentary elections of 2007. - Charalampos Tsitouras (Appl. Math. Comput., 2011)

Hybrid Hamilton-Webster and the Greek apportionment. - Charalampos Tsitouras (Appl. Math. Comput., 2011)

Runge-Kutta pairs of order 5(4) satisfying only the first column simplifying assumption. - Charalampos Tsitouras (Comput. Math. Appl., 2011)

On modified Runge-Kutta trees and methods. - Charalampos Tsitouras; Ioannis Th. Famelis; T. E. Simos (Comput. Math. Appl., 2011)

Enumeration of Rosenberg-type hypercompositional structures defined by binary relations. - Charalampos Tsitouras; Christos G. Massouros (Eur. J. Comb., 2012)

On fitted modifications of Runge-Kutta-Nyström pairs. - Charalampos Tsitouras (Appl. Math. Comput., 2014)

Bounds for variable degree rational L∞ approximations to the matrix cosine. - Charalampos Tsitouras; Vasilios N. Katsikis (Comput. Phys. Commun., 2014)

On modifications of Runge-Kutta-Nyström methods for solving y(4) = f(x, y). - Ioannis Th. Famelis; Charalampos Tsitouras (Appl. Math. Comput., 2016)

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)

Phase-fitted Runge-Kutta pairs of orders 8(7). - Charalampos Tsitouras; Ioannis Th. Famelis; T. E. Simos (J. Comput. Appl. Math., 2017)

Bounds for variable degree rational L∞ approximations to the matrix exponential. - Charalampos Tsitouras; Ioannis Th. Famelis (Appl. Math. Comput., 2018)

Explicit Runge-Kutta methods for starting integration of Lane-Emden problem. - Charalampos Tsitouras (Appl. Math. Comput., 2019)

Evolutionary derivation of Runge-Kutta pairs for addressing inhomogeneous linear problems. - T. E. Simos; Charalampos Tsitouras (Numer. Algorithms, 2021)

Efficiently inaccurate approximation of hyperbolic tangent used as transfer function in artificial neural networks. - T. E. Simos; Charalampos Tsitouras (Neural Comput. Appl., 2021)

On high order Runge-Kutta-Nyström pairs. - Theodore E. Simos; Charalampos Tsitouras (J. Comput. Appl. Math., 2022)

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)

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., 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, 2024)