# invariance principle

## invariance principle

[in′ver·ē·əns ‚prin·sə·pəl]
(physics)
Any principle which states that a physical quantity or physical law possesses invariance under certain transformations. Also known as symmetry law; symmetry principle.
(relativity)
In general relativity, the principle that the laws of motion are the same in all frames of reference, whether accelerated or not.
References in periodicals archive ?
Prove Here we use the Lyapunov-LaSalle invariance principle to prove that [E.
1,2) In this article, we provide evidence that consumers violate the invariance principle when making an extremely important financial decision near retirement: when to claim Social Security benefits.
By using Lyapunov functionals and LaSalle's invariance principle, the threshold conditions for the global asymptotic stability of infection-free equilibrium [E.
Applying LaSalle's invariance principle immediately leads to the global asymptotic stability of [E.
Another was the extension of the invariance principle to accelerating observers: the laws of nature themselves should be identical for all observers, regardless of the magnitude or direction of their acceleration.
It follows from LaSalle invariance principle [15] that the infection-free equilibrium [E.
Invariance principle of this model states that metaphorical mappings preserve the cognitive topology (that is, the image schema structure) of the source domain, in a way consistent with the inherent structure of the target domain.
For time-invariant dynamical systems the invariance principle can be used to relax the strict negative-definiteness condition on the Lyapunov derivative.
Thus, the invariance principle holds in Regime D because revenue sharing has no effect on the distribution of talent and thus does not affect pre-shared club revenues.
In section 2 we develop a formal public choice model of voter behavior and preferences for sports team subsidies, which leads to the location invariance principle.
In the cognitive blending model, the invariance principle, constraining the integration network against image-schematic clash in its required inputs and outcomes, apparently specifies at least one mandatory aspect or element of blending: image-schemata.

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