A Lagrange‐multiplier method for finding the complete spectrum of Lyapunov exponents, which describe the spreading and mixing of many‐body phase‐space trajectories, is developed and applied here to simple two‐ and three‐dimensional equilibrium fluids with short‐range repulsive forces. The numerical values of the Lyapunov exponents converge well, in computer simulations of 103 to 105 time steps, and are insensitive both to the initial conditions and to the numerical accuracy of the trajectory integration.
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© 1987 American Institute of Physics.
1987
American Institute of Physics
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