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Matter domination
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Physics
Branch of physics
Cosmology
Linear cosmological density perturbation
2026-09-28
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During
matter
domination in
a
spatially flat
universe
,
pressureless matter
controls the expansion,
a
(
t
)
∝
t
2/3
, and the growing linear
density
mode is proportional to
a
.
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(5)
Linear cosmological density perturbation
Cosmology
Branch of physics
Physics
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Past exam of the mathematics course of the University of Cambridge
/
2022
/
iii
/
Paper 310
/
3
/
a
/
Solution
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