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  2. 2023 DZ2 - Wikipedia

    en.wikipedia.org/wiki/2023_DZ2

    2023 DZ 2 is an asteroid roughly 70 meters in diameter, classified as a near-Earth object of the Apollo group, and originally a Virtual Impactor (VI). It was first observed on 27 February 2023, when it was 0.11 AU (16 million km) from Earth, with the Isaac Newton Telescope by Ovidiu Vaduvescu, Freya Barwell, and Kiran Jhass (ING and University of Sheffield student support astronomers) within ...

  3. Residue theorem - Wikipedia

    en.wikipedia.org/wiki/Residue_theorem

    v. t. e. In complex analysis, the residue theorem, sometimes called Cauchy's residue theorem, is a powerful tool to evaluate line integrals of analytic functions over closed curves; it can often be used to compute real integrals and infinite series as well.

  4. Cauchy's integral formula - Wikipedia

    en.wikipedia.org/wiki/Cauchy's_integral_formula

    In mathematics, Cauchy's integral formula, named after Augustin-Louis Cauchy, is a central statement in complex analysis.It expresses the fact that a holomorphic function defined on a disk is completely determined by its values on the boundary of the disk, and it provides integral formulas for all derivatives of a holomorphic function.

  5. ZFK equation - Wikipedia

    en.wikipedia.org/wiki/ZFK_equation

    ZFK equation, abbreviation for Zeldovich–Frank-Kamenetskii equation, is a reaction–diffusion equation that models premixed flame propagation. The equation is named after Yakov Zeldovich and David A. Frank-Kamenetskii who derived the equation in 1938 and is also known as the Nagumo equation. [1][2] The equation is analogous to KPP equation ...

  6. Non-circular gear - Wikipedia

    en.wikipedia.org/wiki/Non-circular_gear

    Non-circular gear example Another non-circular gear. A non-circular gear (NCG) is a special gear design with special characteristics and purpose. While a regular gear is optimized to transmit torque to another engaged member with minimum noise and wear and with maximum efficiency, a non-circular gear's main objective might be ratio variations, axle displacement oscillations and more.

  7. Fubini–Study metric - Wikipedia

    en.wikipedia.org/wiki/Fubini–Study_metric

    Metric on a complex projective space endowed with Hermitian form. In mathematics, the Fubini–Study metric (IPA: /fubini-ʃtuːdi/) is a Kähler metric on a complex projective space CPn endowed with a Hermitian form. This metric was originally described in 1904 and 1905 by Guido Fubini and Eduard Study. [1][2]