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Geometry of complex numbers and quaternions | |
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Rotations of the plane | |
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Matrix representation of complex numbers | |
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Quaternions | |
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Consequences of multiplicative absolute value | |
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Quaternion representation of space rotations | |
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Discussion | |
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Groups | |
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Crash course on groups | |
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Crash course on homomorphisms | |
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The groups SU(2) and SO(3) | |
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Isometries of R[superscript n] and reflections | |
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Rotations of R[superscript 4] and pairs of quaternions | |
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Direct products of groups | |
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The map from SU(2)xSU(2) to SO(4) | |
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Discussion | |
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Generalized rotation groups | |
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Rotations as orthogonal transformations | |
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The orthogonal and special orthogonal groups | |
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The unitary groups | |
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The symplectic groups | |
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Maximal tori and centers | |
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Maximal tori in SO(n), U(n), SU(n), Sp(n) | |
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Centers of SO(n), U(n), SU(n), Sp(n) | |
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Connectedness and discreteness | |
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Discussion | |
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The exponential map | |
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The exponential map onto SO(2) | |
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The exponential map onto SU(2) | |
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The tangent space of SU(2) | |
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The Lie algebra su(2) of SU(2) | |
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The exponential of a square matrix | |
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The affine group of the line | |
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Discussion | |
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The tangent space | |
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Tangent vectors of O(n), U(n), Sp(n) | |
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The tangent space of SO(n) | |
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The tangent space of U(n), SU(n), Sp(n) | |
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Algebraic properties of the tangent space | |
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Dimension of Lie algebras | |
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Complexification | |
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Quaternion Lie algebras | |
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Discussion | |
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Structure of Lie algebras | |
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Normal subgroups and ideals | |
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Ideals and homomorphisms | |
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Classical non-simple Lie algebras | |
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Simplicity of sl(n, C) and su(n) | |
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Simplicity of so(n) for n > 4 | |
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Simplicity of sp(n) | |
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Discussion | |
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The matrix logarithm | |
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Logarithm and exponential | |
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The exp function on the tangent space | |
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Limit properties of log and exp | |
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The log function into the tangent space | |
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SO(n), SU(n), and Sp(n) revisited | |
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The Campbell-Baker-Hausdorff theorem | |
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Eichler's proof of Campbell-Baker-Hausdorff | |
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Discussion | |
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Topology | |
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Open and closed sets in Euclidean space | |
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Closed matrix groups | |
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Continuous functions | |
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Compact sets | |
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Continuous functions and compactness | |
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Paths and path-connectedness | |
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Simple connectedness | |
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Discussion | |
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Simply connected Lie groups | |
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Three groups with tangent space R | |
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Three groups with the cross-product Lie algebra | |
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Lie homomorphisms | |
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Uniform continuity of paths and deformations | |
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Deforming a path in a sequence of small steps | |
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Lifting a Lie algebra homomorphism | |
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Discussion | |
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Bibliography | |
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Index | |