cosmological equation

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• Cosmological constant — Physical cosmology Universe · Big Bang …   Wikipedia

• Equation of state (cosmology) — In cosmology, the equation of state of a perfect fluid is characterized by a dimensionless number w , equal to the ratio of its pressure p to its energy density rho;: w=p/ ho . It is closely related to the thermodynamic equation of state and… …   Wikipedia

• Cosmological argument — The cosmological argument is an argument for the existence of a First Cause (or instead, an Uncaused cause) to the universe, and by extension is often used as an argument for the existence of an unconditioned or supreme being, usually then… …   Wikipedia

• Cosmological decade — A cosmological decade ( CÐ ) is a division of the lifetime of the cosmos. The divisions are logarithmic in size, on base 10. Each successive cosmological decade represents a ten fold increase in the total age of the universe.[1] As expressed in… …   Wikipedia

• Raychaudhuri equation — In general relativity, Raychaudhuri s equation is a fundamental result describing the motion of nearby bits of matter.The equation is important as a fundamental lemma for the Penrose Hawking singularity theorems and for the study of exact… …   Wikipedia

• Tolman–Oppenheimer–Volkoff equation — In astrophysics, the Tolman–Oppenheimer–Volkoff (TOV) equation constrains the structure of a spherically symmetric body of isotropic material which is in static gravitational equilibrium, as modelled by general relativity. The equation[1] is Here …   Wikipedia

• Tolman-Oppenheimer-Volkoff equation — In astrophysics, the Tolman Oppenheimer Volkoff (TOV) equation constrains the structure of a spherically symmetric body of isotropic material which is in static gravitational equilibrium, as modelled by general relativity. The equation… …   Wikipedia

• Wheeler–deWitt equation — In theoretical physics, the Wheeler DeWitt equation [DeWitt, B.S., “Quantum Theory of Gravity. I. The Canonical Theory”, Phys. Rev., 160, 1113 1148, (1967).] is a functional differential equation. It is ill defined in the general case, but very… …   Wikipedia

• Dark energy — Not to be confused with dark matter, dark fluid, or dark flow. Physical cosmology …   Wikipedia

• Friedmann–Lemaître–Robertson–Walker metric — FRW redirects here. For other uses, see FRW (disambiguation). Physical cosmology …   Wikipedia

• Friedmann-Lemaître-Robertson-Walker metric — The Friedmann Lemaître Robertson Walker (FLRW) metric is an exact solution of Einstein s field equations of general relativity; it describes a simply connected, homogeneous, isotropic expanding or contracting universe. Depending on geographical… …   Wikipedia