Category: Miscellaneous
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Lifting to a Legendrian Curve v.s. Blowing Up at a Point
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Making Sense of Tautological Fields
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Arnold’s PDE: Constructing Isotropic Manifolds & the Euler Equation Example (Updated: 17/10/2025)
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Non-Trivial Topology of SO(3): Seeing the loop that cannot be shrunk to a point (Penrose’s The Road to Reality)
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Understanding Contact Structure Through Legendrian Curves: A Comparison Between Thurston’s Approach and Arnold’s Approach
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Exploring the Lorentzian Space: Sphere of Radius √-1
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Differentiation of Vector Fields on Manifolds (Arnold’s Math. Methods & Penrose’s The Road to Reality)
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1-Graph of a Solution to a 1st-Order PDE
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Eikonal Equation & Application of Characteristic Vector Field
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Time-Orientability of Lorentzian Metrics on the Mobius Band