QPSI swMATH ID: 9344 Software Authors: Rocha Filho, Tarcísio M.; Figueiredo, Annibal; Brenig, Léon Description: [QPSI]. A MAPLE package for the determination of quasi-polynomial symmetries and invariants We present the quasi-polynomial symmetries and invariants (QPSI) MAPLE package for the systematic determination of quasi-polynomial symmetries, invariants and invariant tensor fields for dynamical systems. A brief survey of the theoretical results obtained by the authors used in the package is given. Homepage: http://www.sciencedirect.com/science/article/pii/S0010465598001866 Dependencies: Maple Keywords: quasi-polynomial symmetries and invariants MAPLE package; quasi-polynomial symmetries; invariants; invariant tensor fields; dynamical systems Related Software: Maple; diffgrob2; PDEtools; Lyapunov; LIE; BIGLIE; CRACK; SADE; LIEPDE; Matlab Cited in: 4 Publications all top 5 Cited by 6 Authors 2 Brenig, Léon 2 Figueiredo, Annibal 2 Rocha Filho, Tarcísio M. 1 Hangos, Katalin Mária 1 Pongrácz, Barna 1 Szederkényi, Gábor Cited in 2 Serials 3 Computer Physics Communications 1 Philosophical Transactions of the Royal Society of London. A. Mathematical, Physical and Engineering Sciences Cited in 4 Fields 3 Numerical analysis (65-XX) 2 Dynamical systems and ergodic theory (37-XX) 1 Ordinary differential equations (34-XX) 1 Computer science (68-XX) Citations by Year