**Perturbation** or **perturb** may refer to:

- Perturbation theory, mathematical methods that give approximate solutions to problems that cannot be solved exactly
- Perturbation (geology), changes in the nature of alluvial deposits over time
- Perturbation (astronomy), alterations to an object's orbit e.g. caused by gravitational interactions with other bodies
- Perturbation theory (quantum mechanics), a set of approximation schemes directly related to mathematical perturbation for describing a complicated quantum system in terms of a simpler one
- Perturbation (biology), an alteration of the function of a biological system, induced by external or internal mechanisms
- Perturbation (transport), operation of a transport system outside of timetable such that delays in arrival and departure from defined locations are present.
- Perturbation function, mathematical function which relates the primal and dual problems.

Read more about Perturbation: See Also

### Other articles related to "perturbation, perturbations":

Scalar-vector-tensor Decomposition

... In cosmological

... In cosmological

**perturbation**theory, the scalar-vector-tensor decomposition is a decomposition of the most general linearized**perturbations**of the Friedmann-Lemaitre-Robertson-Walker ... The general metric**perturbation**has ten degrees of freedom ... states that the evolution equations for the most general linearized**perturbations**of the Friedmann-Lemaitre-Robertson-Walker metric can be decomposed into four scalars, two ...Main Site Subjects

Related Subjects

Related Phrases

Related Words