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  2. Matrix coefficient - Wikipedia

    en.wikipedia.org/wiki/Matrix_coefficient

    In mathematics, a matrix coefficient (or matrix element) is a function on a group of a special form, which depends on a linear representation of the group and additional data. Precisely, it is a function on a compact topological group G obtained by composing a representation of G on a vector space V with a linear map from the endomorphisms of V ...

  3. Coefficient matrix - Wikipedia

    en.wikipedia.org/wiki/Coefficient_matrix

    In linear algebra, a coefficient matrix is a matrix consisting of the coefficients of the variables in a set of linear equations.

  4. Matrix (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Matrix_(mathematics)

    For example, a 2,1 represents the element at the second row and first column of the matrix. In mathematics, a matrix (pl.: matrices) is a rectangular array or table of numbers, symbols, or expressions, with elements or entries arranged in rows and columns, which is used to represent a mathematical object or property of such an object.

  5. List of named matrices - Wikipedia

    en.wikipedia.org/wiki/List_of_named_matrices

    Infinite matrix of the Taylor coefficients of an analytic function and its integer powers: The composition of two functions can be expressed as the product of their Carleman matrices Cartan matrix: A matrix associated with either a finite-dimensional associative algebra, or a semisimple Lie algebra: Cofactor matrix

  6. Determinant - Wikipedia

    en.wikipedia.org/wiki/Determinant

    In mathematics, the determinant is a scalar-valued function of the entries of a square matrix. The determinant of a matrix A is commonly denoted det(A), det A, or | A |. Its value characterizes some properties of the matrix and the linear map represented, on a given basis, by the matrix.

  7. Cramer's rule - Wikipedia

    en.wikipedia.org/wiki/Cramer's_rule

    In linear algebra, ... Now consider a system of n linear equations in n unknowns , …,, whose coefficient matrix is A, with det(A) assumed to be ...

  8. Peter–Weyl theorem - Wikipedia

    en.wikipedia.org/wiki/Peter–Weyl_theorem

    A matrix coefficient of the group G is a complex-valued function on G given as the composition = where π : G → GL(V) is a finite-dimensional group representation of G, and L is a linear functional on the vector space of endomorphisms of V (e.g. trace), which contains GL(V) as an open subset.

  9. Coefficient - Wikipedia

    en.wikipedia.org/wiki/Coefficient

    In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series, or any expression. For example, in the polynomial 7 x 2 − 3 x y + 1.5 + y , {\displaystyle 7x^{2}-3xy+1.5+y,} with variables x {\displaystyle x} and y {\displaystyle y} , the first two terms have the coefficients 7 and −3.