time invariance
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Invariance — is a French journal edited by Jacques Camatte, published since 1968.It emerged from the Italian left communist tradition associated with Amadeo Bordiga and it originally bore the subtitle Invariance of the theory of the proletariat , indicating… … Wikipedia
Invariance mechanics — In physics, invariance mechanics, in its simplest form, is the rewriting of the laws of quantum field theory in terms of invariant quantities only. For example, the positions of a set of particles in a particular coordinate system is not… … Wikipedia
Time travel — This article details time travel itself. For other uses, see Time Traveler. Time travel is the concept of moving between different moments in time in a manner analogous to moving between different points in space, either sending objects (or in… … Wikipedia
time reversal invariance — noun : a principle in physics: if a given sequence of events is physically possible the same sequence in the opposite order is also possible … Useful english dictionary
Scale invariance — In physics and mathematics, scale invariance is a feature of objects or laws that do not change if length scales (or energy scales) are multiplied by a common factor. The technical term for this transformation is a dilatation (also known as… … Wikipedia
Galilean invariance — or Galilean relativity is a principle of relativity which states that the fundamental laws of physics are the same in all inertial frames. Galileo Galilei first described this principle in 1632 in his Dialogue Concerning the Two Chief World… … Wikipedia
Philosophy of space and time — is the branch of philosophy concerned with the issues surrounding the ontology, epistemology, and character of space and time. While such ideas have been central to philosophy from its inception, the philosophy of space and time was both an… … Wikipedia
Impulse invariance — is a technique for designing discrete time Infinite Impulse Response (IIR) filters from continuous time filters in which the impulse response of the continuous time system is sampled to produce the impulse response of the discrete time system. If … Wikipedia
Objectivity (frame invariance) — The concept of objectivity in science means that qualitative and quantitative descriptions of physical phenomena remain unchanged when the phenomena are observed under a variety of conditions. For example, physical processes (e.g. material… … Wikipedia
Non-critical string theory: Lorentz invariance — Usually non critical string theory is considered in frames of the approach proposed by Polyakov [1]. The other approach has been developed in [2] [3] [4]. It represents a universal method to maintain explicit Lorentz invariance in any quantum… … Wikipedia
Rotational invariance — In mathematics, a function defined on an inner product space is said to have rotational invariance if its value does not change when arbitrary rotations are applied to its argument. For example, the function f ( x , y ) = x 2 + y 2 is invariant… … Wikipedia
