Encyclopedia : G : G2 : G2M (5 articles)

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G2 (mathematics)
In mathematics, G2 is the name of some Lie groups and also their Lie algebras [\mathfrak_2]. They are the smallest of the five exceptional simple Lie groups. G2 has rank 2 and dimension 14. The compact form is simply connected, and the non-compact (split) form has fundamental group of orde..
G2 (military intelligence)
G2 is the military intelligence branch of the Irish Defence Forces. See Also G-2 usage in the United States Armed Forces ..
G2 manifold
A G2 manifold, also known as a Joyce manifold, is a seven-dimensional Riemannian manifold with holonomy group G2. The group [G_2] is one of the five exceptional simple Lie groups. It can be described as the automorphism group of the octonions, or equivalently, as a proper subgroup of SO(..

 

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