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  2. Martin Huxley - Wikipedia

    en.wikipedia.org/wiki/Martin_Huxley

    Martin Neil Huxley FLSW (born in 1944) is a British mathematician, working in the field of analytic number theory . He was awarded a PhD from the University of Cambridge in 1970, the year after his supervisor Harold Davenport had died. He is a professor at Cardiff University . Huxley proved a result on gaps between prime numbers, [1] namely ...

  3. Covariance and correlation - Wikipedia

    en.wikipedia.org/wiki/Covariance_and_correlation

    correlation. so that. where E is the expected value operator. Notably, correlation is dimensionless while covariance is in units obtained by multiplying the units of the two variables. If Y always takes on the same values as X, we have the covariance of a variable with itself (i.e. ), which is called the variance and is more commonly denoted as ...

  4. Equidistribution theorem - Wikipedia

    en.wikipedia.org/wiki/Equidistribution_theorem

    In mathematics, the equidistribution theorem is the statement that the sequence. a, 2 a, 3 a, ... mod 1. is uniformly distributed on the circle , when a is an irrational number. It is a special case of the ergodic theorem where one takes the normalized angle measure .

  5. Codomain - Wikipedia

    en.wikipedia.org/wiki/Codomain

    In mathematics, a codomain or set of destination of a function is a set into which all of the output of the function is constrained to fall. It is the set Y in the notation f: X → Y. The term range is sometimes ambiguously used to refer to either the codomain or the image of a function. A codomain is part of a function f if f is defined as a ...

  6. Hausdorff moment problem - Wikipedia

    en.wikipedia.org/wiki/Hausdorff_moment_problem

    The essential difference between this and other well-known moment problems is that this is on a bounded interval, whereas in the Stieltjes moment problem one considers a half-line [0, ∞), and in the Hamburger moment problem one considers the whole line (−∞, ∞). The Stieltjes moment problems and the Hamburger moment problems, if they are ...

  7. Predicate (mathematical logic) - Wikipedia

    en.wikipedia.org/wiki/Predicate_(mathematical_logic)

    A predicate is a statement or mathematical assertion that contains variables, sometimes referred to as predicate variables, and may be true or false depending on those variables’ value or values. In propositional logic, atomic formulas are sometimes regarded as zero-place predicates. [1] In a sense, these are nullary (i.e. 0- arity) predicates.

  8. Darwin (unit) - Wikipedia

    en.wikipedia.org/wiki/Darwin_(unit)

    Since the difference between two natural logarithms is a dimensionless ratio, the trait may be measured in any unit. Inexplicably, Haldane defined the millidarwin as 10 −9 darwins, despite the fact that the prefix milli-usually denotes a factor of one thousandth (10 −3). Application

  9. Saturation (graph theory) - Wikipedia

    en.wikipedia.org/wiki/Saturation_(graph_theory)

    Saturation (graph theory) Given a graph , another graph is -saturated if does not contain a (not necessarily induced) copy of , but adding any edge to it does. The function is the minimum number of edges an -saturated graph on vertices can have. [1] In matching theory, there is a different definition. Let be a graph and a matching in .