[mathematics] In mathematics, in general topology, compactification is the process or result of making a topological space into a compact space. A compact space is a space in which every open cover of the space contains a finite subcover. The methods of compactification are various, but each is a way of controlling points from `going off to...
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http://en.wikipedia.org/wiki/Compactification_(mathematics)
[physics] In physics, compactification means changing a theory with respect to one of its space-time dimensions. Instead of having a theory with this dimension being infinite, one changes the theory so that this dimension has a finite length, and may also be periodic. Compactification plays an important part in thermal field theory where on...
Found on
http://en.wikipedia.org/wiki/Compactification_(physics)
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