• space curves, the Darboux vector is the angular velocity vector of the Frenet frame of a space curve. It is named after Gaston Darboux who discovered it...
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  • Thumbnail for Jean Gaston Darboux
    invariants Darboux or Goursat problem Darboux transformation Darboux vector Darboux's problem Darboux's theorem in symplectic geometry Darboux's theorem...
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  • In the differential geometry of surfaces, a Darboux frame is a natural moving frame constructed on a surface. It is the analog of the Frenet–Serret frame...
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  • A Darboux basis may refer to: A Darboux basis of a symplectic vector space In differential geometry, a Darboux frame on a surface A Darboux tangent in...
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  • Thumbnail for Frenet–Serret formulas
    momentum of the observer's coordinate system is proportional to the Darboux vector of the frame. Concretely, suppose that the observer carries an (inertial)...
    35 KB (5,011 words) - 18:51, 29 May 2025
  • finite-dimensional symplectic vector space has a basis such that ω {\displaystyle \omega } takes this form, often called a Darboux basis or symplectic basis...
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  • Thumbnail for Integral
    The Darboux integral, which is defined by Darboux sums (restricted Riemann sums) yet is equivalent to the Riemann integral. A function is Darboux-integrable...
    69 KB (9,288 words) - 03:06, 30 June 2025
  • Thumbnail for Moving frame
    Gaston Darboux studied the problem of constructing a preferred moving frame on a surface in Euclidean space instead of a curve, the Darboux frame (or...
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  • Thumbnail for Contact geometry
    theorem of Darboux, every contact structure on a manifold looks locally like this particular contact structure on the (2n + 1)-dimensional vector space. The...
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  • Thumbnail for Exterior algebra
    In mathematics, the exterior algebra or Grassmann algebra of a vector space V {\displaystyle V} is an associative algebra that contains V , {\displaystyle...
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  • Thumbnail for Riemann integral
    supremum on that subinterval.) The Darboux integral, which is similar to the Riemann integral but based on Darboux sums, is equivalent to the Riemann...
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  • of a symplectic vector space is even if it is finite. Darboux theorem Symplectic frame bundle Symplectic spinor bundle Symplectic vector space Maurice de...
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  • precise the idea of transporting local geometric objects, such as tangent vectors or tensors in the tangent space, along a curve or family of curves in a...
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  • The Darboux derivative of a map between a manifold and a Lie group is a variant of the standard derivative. It is arguably a more natural generalization...
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  • Thumbnail for Differential geometry
    as smooth manifolds. It uses the techniques of single variable calculus, vector calculus, linear algebra and multilinear algebra. The field has its origins...
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  • {\displaystyle 0\to \mathbf {R} \to H(V)\to V\to 0.} Any symplectic vector space admits a Darboux basis {ej, fk}1 ≤ j,k ≤ n satisfying ω(ej, fk) = δjk and where...
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  • and let t = u × T so that T, t, u form an orthonormal basis, called the Darboux frame. The above quantities are related by: ( T ′ t ′ u ′ ) = ( 0 κ g κ...
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  • lectures by Charles Hermite (1822–1901), Jules Tannery (1848–1910), Gaston Darboux (1842–1917), Paul Appell (1855–1930), Émile Picard (1856–1941), Édouard...
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  • Thumbnail for Differential geometry of surfaces
    leading geometers devoting themselves to their study.[citation needed] Darboux collected many results in his four-volume treatise Théorie des surfaces...
    129 KB (17,641 words) - 09:51, 24 June 2025
  • Poisson bi-vector π i j {\displaystyle \pi ^{ij}} is invertible, one has an odd symplectic manifold. In that case, there exists an odd Darboux Theorem....
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  • Thumbnail for Umbilical point
    umbilics can be star, lemon, or monstar. This classification was first due to Darboux and the names come from Hannay. For surfaces with genus 0 with isolated...
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  • induces a pairing of odd and even variables. There is a version of the Darboux theorem for P-manifolds, which allows one to equip a P-manifold locally...
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  • such as vectors. Geometric algebra is built out of two fundamental operations, addition and the geometric product. Multiplication of vectors results in...
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  • Thumbnail for Gauss's law
    Gauss's law (category Vector calculus)
    Law", too. Lagrange, Joseph-Louis (1869) [1776]. Serret, Joseph-Alfred; Darboux, Jean-Gaston (eds.). "Sur l'attraction des sphéroïdes elliptiques" [On...
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  • is the standard argument for the modern proof of Darboux's theorem, as well as for the proof of Darboux-Weinstein theorem and other normal form results...
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  • primitives of the Darboux derivative. Introduced by Cartan (1904). Subtlety: ( L g ) ∗ X {\displaystyle (L_{g})_{*}X} gives a vector in T g h G  if  X...
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  • denotes the second fundamental form. The Gauss–Bonnet theorem. Curvature Darboux frame Gauss–Codazzi equations do Carmo, Manfredo P. (1976), Differential...
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  • Thumbnail for Sophus Lie
    joined by Klein two months later. There, they met Camille Jordan and Gaston Darboux. But on 19 July 1870 the Franco-Prussian War began and Klein (who was Prussian)...
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  • Thumbnail for Principal curvature
    principal curvatures and principal directions was undertaken by Gaston Darboux, using Darboux frames. The product k1k2 of the two principal curvatures is the...
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  • dependent vector field is a construction in vector calculus which generalizes the concept of vector fields. It can be thought of as a vector field which...
    4 KB (1,013 words) - 13:14, 29 May 2025