Editing Shape of the universe (section)

== See also ==
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* {{annotated link|de Sitter space}}
* {{annotated link|Ekpyrotic universe}}—A string-theory-related model depicting a [[five-dimensional]], [[brane|membrane]]-shaped universe; an alternative to the [[Big Bang|Hot Big Bang Model]], whereby the universe is described to have originated when two membranes collided at the fifth dimension
* {{annotated link|String Theory#Extra dimensions|Extra dimensions in string theory}} for 6 or 7 extra space-like dimensions all with a ''compact'' topology
* {{annotated link|History of the center of the Universe}}
* {{annotated link|Holographic principle}}
* {{annotated link|List of paradoxes#Cosmology|List of cosmology paradoxes}}
* {{annotated link|Spacetime topology}}
* {{annotated link|Theorema Egregium}}—The "remarkable theorem" discovered by [[Carl Friedrich Gauss|Gauss]], which showed there is an intrinsic notion of curvature for surfaces. This is used by [[Bernhard Riemann|Riemann]] to generalize the (intrinsic) notion of curvature to higher-dimensional spaces
* {{annotated link|Three-torus model of the universe}}
* {{annotated link|Zero-energy universe}}
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