Introduction to Division Algebras, Sphere Algebras and Twistors
Abstract
A very basic introduction is given to the r\oles of division algebras and the related sphere algebras concerning the structure of space-time in the dimensionalities D 3,4,6 and 10, with special emphasis on twistors transformations for light-likeness conditions and Hopf maps, together with some outlook for particle and string theory.
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