nuclear quadric
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Quadrics — This is an article about the computing company, for use in mathematics, see quadric. Infobox Company name = Quadrics Ltd. type = Private Subsidiary genre = foundation = 1996 founder = location city = Bristol location country = UK locations = area … Wikipedia
Twistor space — In mathematics, twistor space is the complex vector space of solutions of the twistor equation . It was described in the 1960s by Roger Penrose and MacCallum[1]. According to Andrew Hodges, twistor space is useful for conceptualizing the way… … Wikipedia