SO(n)0(n,1) has Positive Curvatures
Abstract
The Lie group SO0(n, 1) has the left-invariant metric coming from the Killing-Cartan form. The maximal compact subgroup SO(n) of the isometry group acts from the left. The geometry of the quotient space of the homogeneous submersion SO0(n, 1) -> SO(n)0(n, 1) is investigated. The space is expressed as a warped product. Its group of isometries and sectional curvatures are calculated.
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