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  2. Frobenius method - Wikipedia

    en.wikipedia.org/wiki/Frobenius_method

    Some solutions of a differential equation having a regular singular point with indicial roots = and .. In mathematics, the method of Frobenius, named after Ferdinand Georg Frobenius, is a way to find an infinite series solution for a linear second-order ordinary differential equation of the form ″ + ′ + = with ′ and ″.

  3. Frobenius solution to the hypergeometric equation - Wikipedia

    en.wikipedia.org/wiki/Frobenius_solution_to_the...

    In the following we solve the second-order differential equation called the hypergeometric differential equation using Frobenius method, named after Ferdinand Georg Frobenius. This is a method that uses the series solution for a differential equation, where we assume the solution takes the form of a series. This is usually the method we use for ...

  4. Coin problem - Wikipedia

    en.wikipedia.org/wiki/Coin_problem

    The Frobenius number exists as long as the set of coin denominations is setwise coprime. There is an explicit formula for the Frobenius number when there are only two different coin denominations, and , where the greatest common divisor of these two numbers is 1: . If the number of coin denominations is three or more, no explicit formula is known.

  5. Fuchsian theory - Wikipedia

    en.wikipedia.org/wiki/Fuchsian_theory

    In this case the recursive calculation of the Frobenius series' coefficients stops for some roots and the Frobenius series method does not give an -dimensional solution space. The following can be shown independent of the distance between roots of the indicial polynomial: Let α ∈ C {\displaystyle \alpha \in \mathbb {C} } be a μ ...

  6. Postage stamp problem - Wikipedia

    en.wikipedia.org/wiki/Postage_stamp_problem

    The postage stamp problem (also called the Frobenius Coin Problem and the Chicken McNugget Theorem [1]) is a mathematical riddle that asks what is the smallest postage value which cannot be placed on an envelope, if the latter can hold only a limited number of stamps, and these may only have certain specified face values.

  7. Frobenius theorem (differential topology) - Wikipedia

    en.wikipedia.org/wiki/Frobenius_theorem...

    Frobenius' theorem is one of the basic tools for the study of vector fields and foliations. There are thus two forms of the theorem: one which operates with distributions , that is smooth subbundles D of the tangent bundle TM ; and the other which operates with subbundles of the graded ring Ω( M ) of all forms on M .

  8. Fuchs' theorem - Wikipedia

    en.wikipedia.org/wiki/Fuchs'_theorem

    In mathematics, Fuchs' theorem, named after Lazarus Fuchs, states that a second-order differential equation of the form ″ + ′ + = has a solution expressible by a generalised Frobenius series when (), () and () are analytic at = or is a regular singular point.

  9. Induced representation - Wikipedia

    en.wikipedia.org/wiki/Induced_representation

    The Frobenius formula states that if χ is the character of the representation σ, given by χ(h) = Tr σ(h), then the character ψ of the induced representation is given by ψ ( g ) = ∑ x ∈ G / H χ ^ ( x − 1 g x ) , {\displaystyle \psi (g)=\sum _{x\in G/H}{\widehat {\chi }}\left(x^{-1}gx\right),}