TY - JOUR
T1 - Structure-Preserving Algorithms for Dynamical Systems
JO - Journal of Computational Mathematics
VL - 6
SP - 619
EP - 626
PY - 2002
DA - 2002/12
SN - 20
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jcm/8947.html
KW - structure-preserving algorithm, phase space volume, source-free dynamical system.
AB - <p style="text-align: justify;">We study structure-preserving algorithms to phase space volume for linear dynamical systems $\dot{y} = Ly$ for which arbitrarily high order explicit symmetric structure-preserving schemes, i.e. the numerical solutions generated by the schemes satisfy $\det(\frac{\partial y_1}{\partial y_0})=e^{htrL}$, where $trL$ is the trace of matrix $L$, can be constructed. For nonlinear dynamical systems $\dot{y}=f(y)$ Feng-Shang first-order volume-preserving scheme can be also constructed starting from modified $\theta-$methods and is shown that the scheme is structure-preserving to phase space volume.</p>