Talk:List of named matrices/to do

Open tasks


 * Decide section headers here
 * Sort out duplicates; add alternative names
 * Other matrix-related terms and definitions — this is an arbitrary mess; was the result of separating out terms already there. Badly needs expansion.


 * Write a few dozen new matrix articles to facilitate the below (!)


 * We need the following matrices added (more to follow as I have time/find them)

— Homogeneous transformation matrix — primitive matrix — stable matrix (relates to stability matrix?) — Congruent matrices — Ill-conditioned matrix — mass matrix — modal matrix — stiffness matrix — transfer function matrix — Stieltjes matrix — persymmetric matrix (careful! this is defined differently by different people) — orthosymmetric matrix (same as persym. ?) — monotone matrix — hypercompanion matrix — bidiagonal matrix — bisymmetric matrix — derogatory matrix — Schur matrix? — Self-adjoint matrix? — Semi-simple matrix? — Monodromy matrix

— Alexander matrix — (-1,0,1)-matrix — (-1,1)-matrix — Bisymmetric matrix — Bohr matrix — C-matrix — Characteristic matrix — Clement matrix — Completely positive Matrix — Complex matrix — Conjugate matrix — Doubly nonnegative matrix — Elementary matrix operations — Equitable matrix? — — Exponential matrix (?) — Fibonacci matrix — Fibonacci Q-matrix — Fourier matrix — Frobenius matrix — Game matrix (same as payoff matrix?) — Gordon matrix — H-matrix — Conference matrix — Dispersion matrix (same as covariance matrix) — Reciprocal matrix - A=(aij) with aji=1/aij. Mentioned by Saaty, TL, Eur J Operation Research 48(1990) 9.

Completed tasks
 * Hyphen confusion
 * Made matrix descriptions consistent (of form "Xxx matrix — a matrix ..."); Added Copositive matrix and Stieltjes matrix to list (no articles yet)
 * Wrote articles for Hollow matrix, Euclidean distance matrix and added these to list. Dan Pope 02:30, 24 November 2006 (UTC)
 * Added sections for matrices used in Graph theory, and in Statistics. Dan Pope 18:34, 26 November 2006 (UTC)