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But what is a differential?
A simple explanation using basic tools
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Quaternions and Lie groups (part 4)
Automorphisms of the real normed division algebras
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Quaternions and Lie groups (part 3)
Compact symplectic groups and the classification of simple Lie groups
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Quaternions and Lie groups (part 2)
The unit quaternions and three-dimensional rotations
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Quaternions and Lie groups (part 1)
Real algebras and Hurwit's theorem