Universe
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Big Bang
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Physical cosmology
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Cosmology
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Equation
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General relativity
Cosmologists
Big Bang cosmology
Variable mass hypothesis
Non-standard cosmology
Intrinsic redshift
Cosmic evolution
Friedmann equations
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 homogeneous, isotropic expanding or contracting universe ...
Friedmann-Lemaître-Robertson-Walker metric - Wikipedia
Friedmann equations
Friedmann equations
The Friedmann equations are a set of equations in physical cosmology that govern the expansion of space in homogeneous and isotropic models of the universe within the context of general relativity. Th...
Friedmann equations - Wikipedia