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单词 MatricesOfSpecialForm
释义

matrices of special form


The aim of the present entry is to list matrices with special properties.

Restriction on form

  • diagonal matricesMathworldPlanetmath

  • anti-diagonal matrices

  • triangular matricesMathworldPlanetmath

  • block matricesMathworldPlanetmath of either form above or of some other form

  • nilpotent matricesMathworldPlanetmath

  • elementary matricesMathworldPlanetmath

  • Hadamard matricesMathworldPlanetmath

  • partly decomposable matrices

  • fully indecomposable matrices

  • nearly decomposable matrices

  • doubly stochastic matrices

  • stochastic matrices

In numerical applications, sparse matrices (matrices with few nonzero entries) are important; these can be of any of the forms above.

Other restrictions

  • singular matrices

  • GL(n): invertible matrices

  • SU(n): unitary matricesMathworldPlanetmath with determinantMathworldPlanetmath 1

  • O(n): orthogonal matricesMathworldPlanetmath

  • SO(n):orthogonal matrices with determinant 1 (http://planetmath.org/RotationMatrix)

  • normal matricesMathworldPlanetmath

  • positive definite matrices

  • symmetric matricesMathworldPlanetmath, antisymmetric matrices, Hermitian matricesMathworldPlanetmath, anti-Hermitian matrices

  • Sp(2n): symplectic matrices (also called Sp(n))

Special matrices

  • zero matrixMathworldPlanetmath

  • identity matrixMathworldPlanetmath

  • Hilbert matrixMathworldPlanetmath

  • Vandermonde matrixMathworldPlanetmath

  • Toeplitz matrixMathworldPlanetmath

  • Pascal matrixMathworldPlanetmath

  • Cauchy matrix

  • M-matrix

  • magic squareMathworldPlanetmath

  • Latin squareMathworldPlanetmath

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更新时间:2025/5/3 22:45:28