| 11. | Moreover any such isomorphism is induced by some diffeomorphism.
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| 12. | The symmetry is called general covariance or diffeomorphism invariance.
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| 13. | By the Alexander trick, such a diffeomorphism extends to the disk itself.
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| 14. | For each compact manifold, the diffeomorphism group is a regular Lie group.
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| 15. | The diffeomorphism group are flows with vector fields absolutely integrable in Sobolev norm:
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| 16. | Moreover, differential topology does not restrict itself necessarily to the study of diffeomorphism.
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| 17. | The ( orientation-preserving ) diffeomorphism group of the circle is pathwise connected.
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| 18. | In mathematics, a diffeomorphism is an isomorphism in the category of smooth manifolds.
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| 19. | The spatial diffeomorphism constraint with a Hamiltonian gives a Hamiltonian with its smearing shifted,
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| 20. | Here, the constraints are the diffeomorphism constraints.
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