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Answers
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17
What are the most elegant proofs that you have learned from MO?
7
Conformal-symplectic geometry ?
6
Demystifying complex numbers
6
Is there any geometry where the triangle inquality fails?
5
Lie group actions and f-relatedness
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Lie group operation and tangent vectors
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Covariant derivative
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Why is the x->x^1/3 atlas on R diffeomorphic with the x->x atlas on R?
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Defining the inverse of the Bott map
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Functional Analysis and its relation to mechanics
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Representations of Pin vs. Representations of Clifford
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Representation of double cover of $U(n)$ on eigenspaces of harmonic oscillator
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when can we lift an action of Lie algebra?