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  2. System of polynomial equations - Wikipedia

    en.wikipedia.org/wiki/System_of_polynomial_equations

    A solution of a polynomial system is a tuple of values of (x 1, ..., x m) that satisfies all equations of the polynomial system. The solutions are sought in the complex numbers, or more generally in an algebraically closed field containing the coefficients. In particular, in characteristic zero, all complex solutions are sought

  3. Jacobi polynomials - Wikipedia

    en.wikipedia.org/wiki/Jacobi_polynomials

    Plot of the Jacobi polynomial function (,) with = and = and = in the complex plane from to + with colors created with Mathematica 13.1 function ComplexPlot3D In mathematics , Jacobi polynomials (occasionally called hypergeometric polynomials ) P n ( α , β ) ( x ) {\displaystyle P_{n}^{(\alpha ,\beta )}(x)} are a class of classical orthogonal ...

  4. Algebraic variety - Wikipedia

    en.wikipedia.org/wiki/Algebraic_variety

    The twisted cubic is a projective algebraic variety.. Algebraic varieties are the central objects of study in algebraic geometry, a sub-field of mathematics.Classically, an algebraic variety is defined as the set of solutions of a system of polynomial equations over the real or complex numbers.

  5. Cubic equation - Wikipedia

    en.wikipedia.org/wiki/Cubic_equation

    The solutions of this equation are called roots of the cubic function defined by the left-hand side of the equation. If all of the coefficients a, b, c, and d of the cubic equation are real numbers, then it has at least one real root (this is true for all odd-degree polynomial functions). All of the roots of the cubic equation can be found by ...

  6. Schur polynomial - Wikipedia

    en.wikipedia.org/wiki/Schur_polynomial

    The degree d Schur polynomials in n variables are a linear basis for the space of homogeneous degree d symmetric polynomials in n variables. For a partition λ = (λ 1, λ 2, ..., λ n), the Schur polynomial is a sum of monomials,

  7. Polynomial remainder theorem - Wikipedia

    en.wikipedia.org/wiki/Polynomial_remainder_theorem

    In algebra, the polynomial remainder theorem or little Bézout's theorem (named after Étienne Bézout) [1] is an application of Euclidean division of polynomials.It states that, for every number , any polynomial is the sum of () and the product of and a polynomial in of degree one less than the degree of .

  8. Hasse principle - Wikipedia

    en.wikipedia.org/wiki/Hasse_principle

    The Hasse principle asks when the reverse can be done, or rather, asks what the obstruction is: when can you patch together solutions over the reals and p-adics to yield a solution over the rationals: when can local solutions be joined to form a global solution? One can ask this for other rings or fields: integers, for instance, or number fields.

  9. Binary quadratic form - Wikipedia

    en.wikipedia.org/wiki/Binary_quadratic_form

    The identity class in the group is the unique class containing all forms + +, i.e., with first coefficient 1. (It can be shown that all such forms lie in a single class, and the restriction Δ ≡ 0 or 1 ( mod 4 ) {\displaystyle \Delta \equiv 0{\text{ or }}1{\pmod {4}}} implies that there exists such a form of every discriminant.)