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  2. Density functional theory - Wikipedia

    en.wikipedia.org/wiki/Density_functional_theory

    The second HK theorem defines an energy functional for the system and proves that the ground-state electron density minimizes this energy functional. In work that later won them the Nobel prize in chemistry, the HK theorem was further developed by Walter Kohn and Lu Jeu Sham to produce Kohn–Sham DFT (KS DFT).

  3. Henstock–Kurzweil integral - Wikipedia

    en.wikipedia.org/wiki/Henstock–Kurzweil_integral

    In mathematics, the Henstock–Kurzweil integral or generalized Riemann integral or gauge integral – also known as the (narrow) Denjoy integral (pronounced), Luzin integral or Perron integral, but not to be confused with the more general wide Denjoy integral – is one of a number of inequivalent definitions of the integral of a function.

  4. Time-dependent density functional theory - Wikipedia

    en.wikipedia.org/wiki/Time-dependent_density...

    The formal foundation of TDDFT is the Runge–Gross (RG) theorem (1984) [1] – the time-dependent analogue of the Hohenberg–Kohn (HK) theorem (1964). [2] The RG theorem shows that, for a given initial wavefunction, there is a unique mapping between the time-dependent external potential of a system and its time-dependent density.

  5. Talk:Hahn–Kolmogorov theorem - Wikipedia

    en.wikipedia.org/wiki/Talk:Hahn–Kolmogorov_theorem

    Actually, Hahn-Komorogorov Theorem is a stronger theorem than Caratheodory extension theorem, right? (I am using the Wikipedia's naming scheme here.) It looks to me that Caratheodory's Theorem is just HK Theorem with "ring" replaced with "algebra". And by definition, all rings are algebras. So HK implies Caratheodory. Kelvinator0

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    Sanders and his quarterback coach decided a week ago not to participate in Shrine Bowl practices, the source said. Friday's meetings with the top three teams only strengthened that decision.

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  8. Complement (group theory) - Wikipedia

    en.wikipedia.org/wiki/Complement_(group_theory)

    In mathematics, especially in the area of algebra known as group theory, a complement of a subgroup H in a group G is a subgroup K of G such that = = {:,} = {}. Equivalently, every element of G has a unique expression as a product hk where h ∈ H and k ∈ K.

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    Jason Oppenheim from "Selling Sunset" called out LA landlords for hiking rent during the fires. California law prohibits price gouging in emergencies.