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15
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Restricted covariant derivative

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#riemannian-geometry #semi-riemannian-geometry
63
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Decomposition of differential form on a globally-hyperbolic manifold

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#differential-geometry #riemannian-geometry #differential-forms #semi-riemannian-geometry
35
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Finding a metric preserved by the foliation $\chi_s(a,b,c)$

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#differential-geometry #smooth-manifolds #semi-riemannian-geometry #foliations
34
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Converse of "a parallel form is closed and co-closed" on Lorentzian manifold

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#differential-geometry #differential-forms #semi-riemannian-geometry
52
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Characterization of the Levi-Civita connection through length-extremization property of geodesics

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#riemannian-geometry #geodesic #connections #semi-riemannian-geometry
87
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How to show that the gradient is normal everywhere on a regular level set?

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#geometry #differential-geometry #riemannian-geometry #semi-riemannian-geometry
81
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How to derive Lorentz (general) transformation in Special Relativity?

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#linear-algebra #semi-riemannian-geometry #special-relativity
13
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Metric expression of the hypertorsion of (the image of) a timelike curve in 3+1 dimensional spacetime

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#metric-spaces #mathematical-physics #curves #semi-riemannian-geometry
114
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Proof check that a given metric on $\mathbb{S}^1\times\mathbb{R}$ is not time-orientable

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#differential-geometry #riemannian-geometry #smooth-manifolds #semi-riemannian-geometry
132
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Derivative of a function with respect to a function

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#derivatives #differential-geometry #manifolds #semi-riemannian-geometry
46
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Isometries of a submanifold with induced metric

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#riemannian-geometry #isometry #submanifold #semi-riemannian-geometry #pullback
67
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Pade approximation

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#taylor-expansion #approximation #approximation-theory #semi-riemannian-geometry #pade-approximation
59
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How do I find a cont. non-vanishing vector field on $\Bbb S^n$, $n=$odd, such that there exists a Lorentz metric?

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#differential-geometry #riemannian-geometry #semi-riemannian-geometry
59
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Does every n-torus admit a semi-Riemannian metric?

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#riemannian-geometry #semi-riemannian-geometry
42
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Bijection from (proper) Lorentz group to PSL(2,C)

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#representation-theory #covering-spaces #quantum-field-theory #semi-riemannian-geometry

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