• logarithmic norm is a real-valued functional on operators, and is derived from either an inner product, a vector norm, or its induced operator norm....
    13 KB (2,507 words) - 09:26, 20 December 2024
  • {1}{\sqrt {m}}}\|A\|_{1}\leq \|A\|_{2}\leq {\sqrt {n}}\|A\|_{1}.} Dual norm Logarithmic norm The condition only applies when the product is defined, such as...
    28 KB (4,788 words) - 21:25, 24 May 2025
  • Richter scale of earthquake intensity. Logarithmic magnitudes can be negative. In the natural sciences, a logarithmic magnitude is typically referred to as...
    8 KB (1,316 words) - 18:09, 28 January 2025
  • P(\rho )} is an arbitrary LOCC operation over ρ {\displaystyle \rho } The logarithmic negativity is an entanglement measure which is easily computable and...
    4 KB (694 words) - 20:24, 20 November 2024
  • Stochastic Gronwall inequality Logarithmic norm, for a version of Gronwall's lemma that gives upper and lower bounds to the norm of the state transition matrix...
    18 KB (3,413 words) - 04:32, 26 May 2025
  • Thumbnail for Potentiometer
    usually marked with an "A" for logarithmic taper or a "B" for linear taper; "C" for the rarely seen reverse logarithmic taper. Others, particularly those...
    30 KB (3,847 words) - 07:29, 11 May 2025
  • Thumbnail for Germund Dahlquist
    Hörmander as his advisors. As part of this work he introduced the logarithmic norm (also introduced by Russian mathematician Sergei Lozinskii the same...
    4 KB (375 words) - 01:15, 23 April 2025
  • In mathematics, logarithmic Sobolev inequalities are a class of inequalities involving the norm of a function f, its logarithm, and its gradient ∇ f {\displaystyle...
    3 KB (530 words) - 05:10, 25 May 2025
  • f ( x ^ ) = 0 {\displaystyle f({\hat {x}})=0} . If there exists a logarithmic norm μ {\displaystyle \mu } such that the Jacobian J ( x ) = D x f {\displaystyle...
    4 KB (583 words) - 22:03, 17 January 2024
  • L-curve (category Logarithmic scales of measurement)
    It represents a logarithmic plot where the norm of a regularized solution is plotted against the norm of the corresponding residual norm. It is useful for...
    2 KB (195 words) - 12:54, 30 June 2025
  • measure on the real numbers under the logarithm: it is the length on the logarithmic scale. In fact, it is an invariant measure with respect to multiplication...
    9 KB (1,428 words) - 02:44, 30 March 2025
  • other more complex definitions of strain are required, such as stretch, logarithmic strain, Green strain, and Almansi strain. Engineering strain, also known...
    17 KB (2,760 words) - 16:33, 6 March 2025
  • arithmetic to the geometric composition of angles. Marking the line with logarithmically spaced graduations associates multiplication and division with geometric...
    20 KB (2,549 words) - 17:44, 4 April 2025
  • of the logarithmic derivative of f {\displaystyle f} , which is ( log ⁡ f ) ′ = f ′ / f {\displaystyle (\log f)'=f'/f} , and the logarithmic derivative...
    17 KB (2,453 words) - 17:48, 19 May 2025
  • Thumbnail for Metric space
    of norms in finite dimensions, a topologically equivalent metric is obtained if N is the taxicab norm, a p-norm, the maximum norm, or any other norm which...
    82 KB (11,434 words) - 17:46, 21 May 2025
  • Thumbnail for Hearing range
    Logarithmic chart of the hearing ranges of some animals...
    28 KB (3,430 words) - 07:06, 25 May 2025
  • Thumbnail for Golden ratio
    form of a logarithmic spiral) using quarter-circles with radii from these sequences, differing only slightly from the true golden logarithmic spiral. Fibonacci...
    115 KB (13,380 words) - 00:57, 22 June 2025
  • precise estimate may be given in terms of the logarithmic integral function. The number of prime ideals of norm ≤ X is L i ( X ) + O K ( X exp ⁡ ( − c K log...
    3 KB (396 words) - 15:56, 5 August 2023
  • Thumbnail for Euclidean distance
    associated with a norm called the Euclidean norm, defined as the distance of each vector from the origin. One of the important properties of this norm, relative...
    26 KB (3,288 words) - 16:41, 30 April 2025
  • there is in mathematical analysis a class of Sobolev inequalities, relating norms including those of Sobolev spaces. These are used to prove the Sobolev embedding...
    21 KB (3,187 words) - 07:52, 6 May 2025
  • property above, x = ƒ(t). The order of growth of Dirichlet's kernel is logarithmic, i.e. ∫ | D N ( t ) | d t = 4 π 2 log ⁡ N + O ( 1 ) . {\displaystyle...
    23 KB (4,071 words) - 13:25, 30 June 2025
  • comparison to the reference level of 1 pPa (= 10−12 pascals). It is a logarithmic measure of the ratio of two sound energy densities. The unit of the sound...
    3 KB (393 words) - 20:41, 15 February 2023
  • Thumbnail for X-ray reflectivity
    removed. This 2-norm in logarithmic space can be generalized to p-norm in logarithmic space. The drawback of this 2-norm in logarithmic space is that it...
    17 KB (2,455 words) - 03:58, 2 June 2025
  • Thumbnail for Geometric mean
    When the collection of numbers and their geometric mean are plotted in logarithmic scale, the geometric mean is transformed into an arithmetic mean, so...
    30 KB (4,389 words) - 23:51, 26 June 2025
  • Thumbnail for Arc length
    closed-form solutions for arc length include the catenary, circle, cycloid, logarithmic spiral, parabola, semicubical parabola and straight line. The lack of...
    29 KB (5,339 words) - 08:06, 22 May 2025
  • n=2} the term bidisc is sometimes used. A polydisc is an example of logarithmically convex Reinhardt domain. Poincare, H, Les fonctions analytiques de...
    2 KB (326 words) - 10:05, 24 May 2024
  • Thumbnail for 68–95–99.7 rule
    expected frequency: points that fall more than 3 standard deviations from the norm are likely outliers (unless the sample size is significantly large, by which...
    20 KB (1,645 words) - 20:12, 2 June 2025
  • the logarithmic characteristics of the power spectra, and it becomes effective when the processing task of the power spectrum also has logarithmic characteristics...
    3 KB (537 words) - 04:01, 18 March 2025
  • of oil, water and gas within porous rock at very high pressure. pH A logarithmic measure of the concentration of hydrogen ions in an acid or base solution...
    251 KB (31,179 words) - 19:07, 15 June 2025
  • of the coordinates (e.g. 7 for the coordinates (3/7, 1/2)), but in a logarithmic scale. Height functions allow mathematicians to count objects, such as...
    17 KB (1,908 words) - 08:10, 5 April 2025