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Dynamics of flows and maps (continuous and discrete time), including infinite-dimensional dynamics, Hamiltonian dynamics, ergodic theory.

1 vote

Noninvariance for a specific nonlinear oscillator

See EDIT #1 below for a generalization to $N > 2$ particles. Let us restate the problem for ease of reference. The equations are $\dot{x}(t)=y(t)$ $\dot{y}(t)= - 4 x(t) + y(t)^2$ Physically they de …
Dr. Wolfgang Hintze's user avatar