• differential geometry, the total absolute curvature of a smooth curve is a number defined by integrating the absolute value of the curvature around the curve....
    4 KB (518 words) - 21:41, 11 November 2024
  • Thumbnail for Total curvature
    the differential geometry of curves, the total curvature of an immersed plane curve is the integral of curvature along a curve taken with respect to arc...
    5 KB (588 words) - 16:37, 1 April 2025
  • Fenchel's theorem (category Curvature (mathematics))
    differential geometry, Fenchel's theorem is an inequality on the total absolute curvature of a closed smooth space curve, stating that it is always at least...
    6 KB (788 words) - 18:02, 5 June 2024
  • Thumbnail for Curve-shortening flow
    any continuous curve evolution. If the curve is non-convex, its total absolute curvature decreases monotonically, until it becomes convex. Once convex,...
    75 KB (9,389 words) - 10:32, 27 May 2025
  • Thumbnail for Convex curve
    and only if its curvature has a consistent sign, which happens if and only if its total curvature equals its total absolute curvature. Archimedes, in...
    37 KB (4,174 words) - 06:39, 27 September 2024
  • Thumbnail for Curved spacetime
    the curvature of spacetime. These tidal accelerations are strictly local. It is the cumulative total effect of many local manifestations of curvature that...
    45 KB (5,669 words) - 14:45, 22 April 2025
  • In mathematics, curvature is any of several strongly related concepts in geometry that intuitively measure the amount by which a curve deviates from being...
    45 KB (6,608 words) - 15:12, 6 July 2025
  • that is sufficiently smooth to define the curvature κ at each of its points, and if the total absolute curvature is less than or equal to 4π, then K is an...
    4 KB (412 words) - 22:51, 17 October 2022
  • Thumbnail for Farsightedness
    nanophthalmos. Curvatural: Curvatural hypermetropia occur when curvature of lens or cornea is flatter than normal. About 1 mm increase in radius of curvature results...
    23 KB (2,176 words) - 17:18, 16 July 2025
  • Bonn with thesis Totale Absolutkrümmung immersierter Flächen (Total absolute curvature of immersed surfaces). Since 1986 he is professor at TU Berlin...
    8 KB (707 words) - 21:06, 28 June 2024
  • Thumbnail for Risk aversion
    for utility functions are represented by these measures. The higher the curvature of u ( c ) {\displaystyle u(c)} , the higher the risk aversion. However...
    40 KB (5,269 words) - 16:16, 27 June 2025
  • Thumbnail for Tensor
    magnetic susceptibility, ...), and general relativity (stress–energy tensor, curvature tensor, ...). In applications, it is common to study situations in which...
    69 KB (9,437 words) - 13:06, 15 July 2025
  • Thumbnail for Bernoulli's principle
    or less standard in the United States, has a special shape with more curvature on top than on the bottom; consequently, the air must travel over the...
    75 KB (10,219 words) - 19:44, 23 May 2025
  • Thumbnail for Gaussian beam
    {{\text{FWHM}}(z)}{\sqrt {2\ln 2}}}.} The wavefronts have zero curvature (radius = ∞) at the waist. Wavefront curvature increases away from the waist, with the maximum...
    47 KB (6,964 words) - 04:53, 11 June 2025
  • Thumbnail for Euler equations (fluid dynamics)
    {1}{R}}{\boldsymbol {e}}_{n},\end{aligned}}} and R {\displaystyle R} is the radius of curvature of the streamline. Therefore, the momentum part of the Euler equations...
    79 KB (13,150 words) - 19:33, 15 July 2025
  • parallelism, also referred to as absolute or teleparallelism. In this theory, a spacetime is characterized by a curvature-free linear connection in conjunction...
    21 KB (2,620 words) - 11:39, 12 July 2025
  • Thumbnail for Heat death of the universe
    this is when the universe reaches thermodynamic equilibrium. If the curvature of the universe is hyperbolic or flat, or if dark energy is a positive...
    31 KB (3,533 words) - 16:05, 21 June 2025
  • Thumbnail for Apollonian gasket
    factorization of the curvatures, along with the multiplier needed to go from the previous set to the current one. The absolute values of the curvatures of the "a"...
    27 KB (2,896 words) - 20:34, 23 June 2025
  • Thumbnail for Surface tension
    the mean curvature, as seen in the Young–Laplace equation. For an open soap film, the pressure difference is zero, hence the mean curvature is zero, and...
    72 KB (8,828 words) - 14:30, 18 June 2025
  • Thumbnail for Mikhael Gromov (mathematician)
    Bishop−Gromov volume comparison to control the injectivity radius in absolute terms by curvature bounds and volumes of geodesic balls.[CGT82] Their estimate has...
    48 KB (3,749 words) - 18:26, 9 July 2025
  • Thumbnail for Gravity
    gravity in terms of the curvature of spacetime, caused by the uneven distribution of mass. The most extreme example of this curvature of spacetime is a black...
    83 KB (8,878 words) - 21:48, 18 July 2025
  • Thumbnail for Spacetime
    the curvature of spacetime. These tidal accelerations are strictly local. It is the cumulative total effect of many local manifestations of curvature that...
    132 KB (19,765 words) - 09:00, 3 June 2025
  • Thumbnail for Affine connection
    connection, and the second is also called the curvature. These expressions are differential 2-forms on the total space of a frame bundle. However, they are...
    58 KB (7,693 words) - 14:11, 3 July 2024
  • Thumbnail for Universe
    corresponding to a space of positive curvature; or −1, corresponding to a space of positive or negative curvature. The value of R as a function of time...
    153 KB (15,905 words) - 21:50, 18 July 2025
  • Thumbnail for Big Bang
    may have positive, negative, or zero spatial curvature depending on its total energy density. Curvature is negative if its density is less than the critical...
    149 KB (15,958 words) - 22:51, 1 July 2025
  • Thumbnail for Refractive index
    length of a lens is determined by its refractive index n and the radii of curvature R1 and R2 of its surfaces. The power of a thin lens in air is given by...
    82 KB (9,202 words) - 19:44, 15 July 2025
  • where the two currents are summed up. This method enhanced further the curvature correction and achieved superior TD performance over a wider temperature...
    12 KB (1,411 words) - 10:56, 24 March 2025
  • Thumbnail for Beta distribution
    information is a measure of the curvature of the log likelihood function of α. A low curvature (and therefore high radius of curvature), flatter log likelihood...
    245 KB (40,559 words) - 20:35, 30 June 2025
  • only by reference to absolute space. Alternatively, these experiments provide an operational definition of what is meant by "absolute rotation", and do not...
    27 KB (3,665 words) - 06:32, 22 July 2025
  • Thumbnail for Yang–Mills equations
    L^{2}} -norm of the curvature, and its Euler–Lagrange equations describe the critical points of this functional, either the absolute minima or local minima...
    25 KB (3,771 words) - 03:16, 7 July 2025