When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Lambda - Wikipedia

    en.wikipedia.org/wiki/Lambda

    The lambda particle is a type of subatomic particle in subatomic particle physics. Lambda is the set of logical axioms in the axiomatic method of logical deduction in first-order logic. There is a poetical allusion to the use of Lambda as a shield blazon by the Spartans. [citation needed] [4] Lambda is the von Mangoldt function in mathematical ...

  3. Cosmological constant - Wikipedia

    en.wikipedia.org/wiki/Cosmological_constant

    Thus, the Lambda-CDM model, the current standard model of cosmology which uses the FLRW metric, includes the cosmological constant, which is measured to be on the order of 10 −52 m −2. It may be expressed as 10 −35 s −2 (multiplying by c 2 ≈ 10 17 m 2 ⋅s −2 ) or as 10 −122 ℓ P −2 [ 27 ] (where ℓ P is the Planck length).

  4. Wavelength - Wikipedia

    en.wikipedia.org/wiki/Wavelength

    In physics and mathematics, wavelength or spatial period of a wave or periodic function is the distance over which the wave's shape repeats. [1] [2] In other words, it is the distance between consecutive corresponding points of the same phase on the wave, such as two adjacent crests, troughs, or zero crossings.

  5. Phase velocity - Wikipedia

    en.wikipedia.org/wiki/Phase_velocity

    The phase velocity is given in terms of the wavelength λ (lambda) and time period T as v p = λ T . {\displaystyle v_{\mathrm {p} }={\frac {\lambda }{T}}.} Equivalently, in terms of the wave's angular frequency ω , which specifies angular change per unit of time, and wavenumber (or angular wave number) k , which represent the angular change ...

  6. Radioactive decay - Wikipedia

    en.wikipedia.org/wiki/Radioactive_decay

    The decay constant, λ "lambda", the reciprocal of the mean lifetime (in s −1), sometimes referred to as simply decay rate. The mean lifetime, τ "tau", the average lifetime (1/e life) of a radioactive particle before decay. Although these are constants, they are associated with the statistical behavior of populations of atoms. In consequence ...

  7. Lambda-CDM model - Wikipedia

    en.wikipedia.org/wiki/Lambda-CDM_model

    The Lambda-CDM, Lambda cold dark matter, or ΛCDM model is a mathematical model of the Big Bang theory with three major components: a cosmological constant , denoted by lambda (Λ), associated with dark energy ;

  8. Plasma parameter - Wikipedia

    en.wikipedia.org/wiki/Plasma_parameter

    The plasma parameter is a dimensionless number, denoted by capital Lambda, Λ.The plasma parameter is usually interpreted to be the argument of the Coulomb logarithm, which is the ratio of the maximum impact parameter to the classical distance of closest approach in Coulomb scattering.

  9. Lambda function - Wikipedia

    en.wikipedia.org/wiki/Lambda_function

    Dirichlet lambda function, λ(s) = (1 – 2 −s)ζ(s) where ζ is the Riemann zeta function; Liouville function, λ(n) = (–1) Ω(n) Von Mangoldt function, Λ(n) = log p if n is a positive power of the prime p; Modular lambda function, λ(τ), a highly symmetric holomorphic function on the complex upper half-plane