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  2. 6-j symbol - Wikipedia

    en.wikipedia.org/wiki/6-j_symbol

    A remarkable formula for the asymptotic behavior of the 6-j symbol was first conjectured by Ponzano and Regge [2] and later proven by Roberts. [3]The asymptotic formula applies when all six quantum numbers j 1, ..., j 6 are taken to be large and associates to the 6-j symbol the geometry of a tetrahedron.

  3. Second partial derivative test - Wikipedia

    en.wikipedia.org/wiki/Second_partial_derivative_test

    The Hessian approximates the function at a critical point with a second-degree polynomial. In mathematics , the second partial derivative test is a method in multivariable calculus used to determine if a critical point of a function is a local minimum , maximum or saddle point .

  4. Structure theorem for finitely generated modules over a ...

    en.wikipedia.org/wiki/Structure_theorem_for...

    Taking = [], the algebra of polynomials with coefficients in K evaluated at T, yields structure information about T. V can be viewed as a finitely generated module over []. The last invariant factor is the minimal polynomial, and the product of invariant factors is the characteristic polynomial.

  5. 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 ...

  6. Category:Polynomials - Wikipedia

    en.wikipedia.org/wiki/Category:Polynomials

    Pages in category "Polynomials" The following 200 pages are in this category, out of approximately 221 total. This list may not reflect recent changes.

  7. BCH code - Wikipedia

    en.wikipedia.org/wiki/BCH_code

    Given a prime number q and prime power q m with positive integers m and d such that d ≤ q m − 1, a primitive narrow-sense BCH code over the finite field (or Galois field) GF(q) with code length n = q m − 1 and distance at least d is constructed by the following method.

  8. 3-j symbol - Wikipedia

    en.wikipedia.org/wiki/3-j_symbol

    where (,) is the Kronecker delta.. The summation is performed over those integer values k for which the argument of each factorial in the denominator is non-negative, i.e. summation limits K and N are taken equal: the lower one = (,, +), the upper one = (+,, +).

  9. Hessian matrix - Wikipedia

    en.wikipedia.org/wiki/Hessian_matrix

    The Hessian matrix plays an important role in Morse theory and catastrophe theory, because its kernel and eigenvalues allow classification of the critical points. [2] [3] [4] The determinant of the Hessian matrix, when evaluated at a critical point of a function, is equal to the Gaussian curvature of the function considered as a manifold. The ...