enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Spinel group - Wikipedia

    en.wikipedia.org/wiki/Spinel_group

    Inverse spinel structures have a different cation distribution in that all of the A cations and half of the B cations occupy octahedral sites, while the other half of the B cations occupy tetrahedral sites. An example of an inverse spinel is Fe 3 O 4, if the Fe 2+ (A 2+) ions are d 6 high-spin and the Fe 3+ (B 3+) ions are d 5 high-spin.

  3. Spaces of test functions and distributions - Wikipedia

    en.wikipedia.org/wiki/Spaces_of_test_functions...

    The above characterizations can be used to determine whether or not a linear functional is a distribution, but more advanced uses of distributions and test functions (such as applications to differential equations) is limited if no topologies are placed on () and ().

  4. Bump function - Wikipedia

    en.wikipedia.org/wiki/Bump_function

    In fact, by definition of Support_(mathematics) we have that ():= {: =} ¯ = (,) ¯, where the closure is taken with respect the Euclidean topology of the real line. The proof of smoothness follows along the same lines as for the related function discussed in the Non-analytic smooth function article.

  5. Spinel - Wikipedia

    en.wikipedia.org/wiki/Spinel

    Polyhedral representation of spinel MgAl 2 O 4. Spinel (/ s p ɪ ˈ n ɛ l, ˈ s p ɪ n əl / [7]) is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula MgAl 2 O 4 in the cubic crystal system. Its name comes from the Latin word spinella, a diminutive form of spine, in reference to its pointed crystals. [5]

  6. Distribution (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Distribution_(mathematics)

    Instead of acting on points, distribution theory reinterprets functions such as as acting on test functions in a certain way. In applications to physics and engineering, test functions are usually infinitely differentiable complex -valued (or real -valued) functions with compact support that are defined on some given non-empty open subset U ⊆ ...

  7. Kolmogorov–Smirnov test - Wikipedia

    en.wikipedia.org/wiki/Kolmogorov–Smirnov_test

    Illustration of the Kolmogorov–Smirnov statistic. The red line is a model CDF, the blue line is an empirical CDF, and the black arrow is the KS statistic.. In statistics, the Kolmogorov–Smirnov test (also K–S test or KS test) is a nonparametric test of the equality of continuous (or discontinuous, see Section 2.2), one-dimensional probability distributions.

  8. The 20 best sales this weekend: Kindle accessories, iPads ...

    www.aol.com/lifestyle/the-20-best-sales-this...

    This bestseller for travelers and forgetful people is now even cheaper than it was on Black Friday! Use Apple AirTags to keep track of your most precious belongings: keys, wallet, luggage, and ...

  9. Mollifier - Wikipedia

    en.wikipedia.org/wiki/Mollifier

    A mollifier (top) in dimension one. At the bottom, in red is a function with a corner (left) and sharp jump (right), and in blue is its mollified version. In mathematics, mollifiers (also known as approximations to the identity) are particular smooth functions, used for example in distribution theory to create sequences of smooth functions approximating nonsmooth (generalized) functions, via ...