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A metric space characterizes a set of elements by means of one number value for each pair of elements. (Additional conditions may apply.) It formalizes and broadens the idea of geometric distances, as…
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no increase in entropy.
Massive Compact Halo Objects
A body in space orbiting a star which satisfies 3 criteria. It is small enough to not induce nuclear fusion in its core, it is large enough to be rounded by its own gravity, and it has cleared its orb…
star-like objects that are too low in mass to fuse hydrogen-1 but still massive enough to fuse deuterium.
A chemostat (http://en.wikipedia.org/wiki/Chemostat) is a device to grow a cell culture in equilibrium.
a nonlinear hyperbolic partial differential equation in 1 + 1 dimensions involving the d'Alembert operator and the sine of the unknown function. This equation attracted a l…
A topological quantum field theory (or topological field theory or TQFT) is a quantum field theory which computes topological invariants.