In algebraic combinatorics, the h-vector of a simplicial polytope is a fundamental invariant of the polytope which encodes the number of faces of different dimensions and allows one to express the Dehn–Sommerville equations in a particularly simple form. A characterization of the set of h-vectors of simplicial polytopes was conjectured by Peter McMullen and proved by Lou Billera and Carl W. Lee and Richard Stanley (g-theorem).
The rocket completed a first test flight at low altitude in May 2017. Vector Launch is currently planning the first orbital launch from the Pacific Spaceport Complex in Alaska in 2019. An upgraded version of the Vector-R, called the Vector-H (Heavy), is expected to launch in 2019.
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|G.H.L.I.S (Original Mix)||8:45|
|G.H.L.I.S (Leama & Moor Mix)||9:17|
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