 Every Lie algebra has a unique single corresponding simply connected Lie group (source code)

by Ciro Santilli (@cirosantilli, 37)

= Every Lie algebra has a unique single corresponding simply connected Lie group

This <simply connected> is called the <universal covering group>.

E.g. in the case of <SO(3)> and <SU(2)>, <SU(2)> is <simply connected>, but <SO(3)> is not.

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