Perturbation (astronomy)

Phase portrait

Phase reduction

Phase space method

Poincaré map

Poincaré plot

Poincaré–Birkhoff theorem

Pomeau–Manneville scenario

Positive-definite function

Predictive state representation

Prefix order

Projected dynamical system

Pseudo-Anosov map

Pugh's closing lemma

Quasi-invariant measure

Quasicircle

Quasiperiodic motion

Quasiperiodicity

Rational dependence

Rayleigh–Ritz method

{wiki=Dynamical_systems}

Dynamical systems is a branch of mathematics that studies the behavior of systems that evolve over time according to specific rules. These systems can be described by differential equations or difference equations, which dictate how the state of the system changes in response to its current state. \#\#\# Key Concepts: 1. **State Space**: The set of all possible states of a system. Each point in this space corresponds to a unique state of the system.


Dynamical systems

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