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Spin representations can be analysed according to the following strategy: if S is a real spin representation of Spin(p, q), then its complexification is a complex spin representation of Spin(p, q); as a representation of so(p, q), it therefore extends to a complex representation of so(n, C).
In indefinite signature, the spin group Spin(p, q) is constructed through Clifford algebras in a similar way to standard spin groups. It is a double cover of SO 0 (p, q), the connected component of the identity of the indefinite orthogonal group SO(p, q). For p + q > 2, Spin(p, q) is connected; for (p, q) = (1, 1) there are two connected ...
A reverse somersault in the air. Backflips were banned in competition until 2024. [3]backspin A spin performed on a back outside edge base value A part of the ISU Judging System – a numeric value assigned to each technical element in a skater's program, designed to standardize the elements' potential scores in an attempt to make judging more impartial [4]
The 900 is a 2½-revolution (900 degrees) aerial spin performed on a skateboard ramp. While airborne, the skateboarder makes two-and-a-half turns about their longitudinal axis, thereby facing down when coming down. It is considered one of skateboarding's most technically demanding tricks.
Joie Davidow, American author and editor; Joie Lee (born 1962), American screenwriter, film producer and actress; Joie Ray (disambiguation), multiple people, including: Joie Ray (athlete) (1894–1978), American middle and long distance runner; Joie Ray (racing driver) (1923–2007), American open-wheel and stock-car racer
G.I. Joe is a series of American military science fiction action films based on the toy line of the same name.Development for the first film began in 2003, but when the United States launched the invasion of Iraq in March 2003, Hasbro suggested adapting the Transformers instead.
Joie Manda is an American music executive and the Founder & CEO of Encore Recordings and Platinum Grammar. He's previously held executive positions with Interscope Geffen A&M Records , Def Jam Recordings , Warner Music Group , Universal Music Group , and Asylum Records .
SPiN is an international chain of franchised table tennis clubs and bars. The company was founded in 2009 by Jonathan Bricklin, Andrew Gordon, Franck Raharinosy, [ 1 ] [ 2 ] and Wally Green . [ 3 ] [ 4 ]