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exact couple - translation to russian
Draft:Exact couple
exact couple
геометрия
точная пара
force couple
SYSTEM OF FORCES WITH A RESULTANT MOMENT BUT NO RESULTANT FORCE
Pair of opposing forces; Pure moment; Body couple; Force couple
общая лексика
пара сил
exact sciences
SCIENCES THAT ADMIT OF ABSOLUTE PRECISION IN THEIR RESULTS
Exact mathematical sciences; Exact Sciences; Exact Science; Quantitative sciences; Quantitative science; Exact science
[ig'zækt'saiənsiz]
общая лексика
точные науки
Definition
exact science
If you say that a particular activity is not an exact science, you mean that there are no set rules to follow or it does not produce very accurate results.
Forecasting floods is not an exact science.
N-SING: usu with brd-neg
Wikipedia
Exact couple
In mathematics, an exact couple, due to William S. Massey (1952), is a general source of spectral sequences. It is common especially in algebraic topology; for example, Serre spectral sequence can be constructed by first constructing an exact couple.
For the definition of an exact couple and the construction of a spectral sequence from it (which is immediate), see Spectral sequence § Spectral Sequence of an exact couple. For a basic example, see Bockstein spectral sequence. The present article covers additional materials.
