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invariant

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invariant [in′ver·ē·ənt]
(mathematics)
An elementxof a setEis said to be invariant with respect to a groupGof mappings acting onEifg(x) =xfor allginG.
A subsetFof a setEis said to be invariant with respect to a groupGof mappings acting onEifg(x) is inFfor allxinFand allginG.
For an algebraic equation, an expression involving the coefficients that remains unchanged under a rotation or translation of the coordinate axes in the cartesian space whose coordinates are the unknown quantities.
(programming)invariant - A rule, such as the ordering of an ordered list or heap, that applies throughout the life of a data structure or procedure. Each change to the data structure must maintain the correctness of the invariant.
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He dubbed the material an Invar alloy-because the metals are invariant when heated, such that the length of a piece of Invar metal does not change as its temperature is increased, as do normal metals.
Scientists create non-expanding metal by Balochistan Times (Baluchistan Province, Pakistan)
of Amsterdam) contributes a major study locating both variant and invariant forms of the prefix, and fully analyzes the effects of its application to root words.
Studies on the Polish verbal prefix prze- by Reference & Research Book News
The methods depend upon inhibiting invariant chain proteolysis by cathepsin S from class II MHC/invariant chain complexes, thereby reducing the competency of class II MHC molecules for binding antigenic peptides, reducing presentation of antigenic peptides by class II MHC molecules, and suppressing immune responses.
Massachusetts Institute of Technology obtains United States patent by BIOTECH Patent News
 
 
 
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