Tightness
Encyclopedia
Tightness may refer to:
In mathematics
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In economics
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In other fields,
In mathematics
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...
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- Tightness of (a collection of) measuresTightness of measuresIn mathematics, tightness is a concept in measure theory. The intuitive idea is that a given collection of measures does not "escape to infinity."-Definitions:...
is a concept in measure (and probability), theory in mathematics - Tightness (topology) is also a cardinal functionCardinal functionIn mathematics, a cardinal function is a function that returns cardinal numbers.- Cardinal functions in set theory :...
used in general topology
In economics
Economics
Economics is the social science that analyzes the production, distribution, and consumption of goods and services. The term economics comes from the Ancient Greek from + , hence "rules of the house"...
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- Tightness refers to the degree to which the number of unemployed workers exceed the number of posted job vacancies (or vice versa).
- Market tightnessMarket tightnessTightness is defined as a point in time where economically, it is very difficult to invest, but it is far easier to sell or to remove investments in return of monetary rewards. The higher the level of the tightness, the more expensive, less common, and less reliable the market becomes...
, a point in time where it is very difficult to invest, but it is far easier to sell or to remove investments in return of monetary rewards
In other fields,
- Tightness of a rope indicates the rope is under tension
- Tightness of a sealing means it is impermeablePermeationPermeation, in physics and engineering, is the penetration of a permeate through a solid, and is related to a material's intrinsic permeability...
, that it seals well - Tightness is the art of being 'tight' (i.e., stingy or miserMiserA miser, cheapskate, snipe-snout, penny pincher, piker, scrooge, skinflint or tightwad is a person who is reluctant to spend money, sometimes to the point of forgoing even basic comforts and some necessities...
ly) - Tightness can refer to something being coolCool (aesthetic)Something regarded as cool is an admired aesthetic of attitude, behavior, comportment, appearance and style, influenced by and a product of the Zeitgeist. Because of the varied and changing connotations of cool, as well its subjective nature, the word has no single meaning. It has associations of...