Witryna4 sie 2024 · A flattened version of links in a thickened surface is immersed curves in a surface. Let L ( Σ) denote the set of all links in Σ × [ 0, 1], and let C ( Σ) denote the set of all (multi-)curves in Σ. There is a map L ( Σ) → C ( Σ) given by projection. Witrynaimmersed H4-initial curves. Moreover, they prove that the surface di usion ow can drive an initially embedded curve to a self intersection. The techniques in [14, 21] seem to be restricted to two dimensions. Our methods work in any dimension and we obtain existence and uniqueness for immersed hypersurfaces.
On the curve diffusion flow of closed plane curves SpringerLink
Witryna12 sie 2024 · Cabling in terms of immersed curves. Jonathan Hanselman, Liam Watson. In joint work with J. Rasmussen, we gave an interpretation of Heegaard Floer … Witryna28 kwi 2024 · As far as I know, immersions become more relevant in the context of manifolds (of which curves are a special case). In general, if you have a map $f : M \to N$ between manifolds which is an immersion, it means the derivative $df_x : T_x M \to T_ {f (x)}N$ is injective at each point $x \in M$. cyberworld 2022
Neighborhoods and Manifolds of Immersed Curves - Hindawi
Witryna4 lut 2012 · In this paper, we consider the steepest descent H −1 -gradient flow of the length functional for immersed plane curves, known as the curve diffusion flow. It is known that under this flow there exist both initially immersed curves that develop at least one singularity in finite time and initially embedded curves that self-intersect in … Immersed plane curves have a well-defined turning number, which can be defined as the total curvature divided by 2 π. This is invariant under regular homotopy, by the Whitney–Graustein theorem – topologically, it is the degree of the Gauss map , or equivalently the winding number of the unit tangent (which … Zobacz więcej In mathematics, an immersion is a differentiable function between differentiable manifolds whose differential (or pushforward) is everywhere injective. Explicitly, f : M → N is an immersion if Zobacz więcej A regular homotopy between two immersions f and g from a manifold M to a manifold N is defined to be a differentiable function H : M … Zobacz więcej A k-tuple point (double, triple, etc.) of an immersion f : M → N is an unordered set {x1, ..., xk} of distinct points xi ∈ M with the same image … Zobacz więcej A far-reaching generalization of immersion theory is the homotopy principle: one may consider the immersion condition (the rank of the derivative is always k) as a partial differential relation (PDR), as it can be stated in terms of the partial derivatives of the function. … Zobacz więcej Hassler Whitney initiated the systematic study of immersions and regular homotopies in the 1940s, proving that for 2m < n + 1 every map f : M → N of an m-dimensional … Zobacz więcej • A mathematical rose with k petals is an immersion of the circle in the plane with a single k-tuple point; k can be any odd number, but if even must be a multiple of 4, so the figure … Zobacz więcej • Immersed submanifold • Isometric immersion • Submersion Zobacz więcej Witryna6 mar 2024 · Immersed plane curves have a well-defined turning number, which can be defined as the total curvature divided by 2 π. This is invariant under regular homotopy, by the Whitney–Graustein theorem – topologically, it is the degree of the Gauss map, or equivalently the winding number of the unit tangent (which does not vanish) about the … cyber world 2000 full movie