The resultant matrix of two polynomials
Merrill M. Flood · Bulletin of the American Mathematical Society · 1937
A special case of the principal result of this paper was considered by the present author in a paper having the same title and published in the American Mathematical Monthly, vol.44 (1937), p. 309.t Frobenius, Journal für Mathematik, vol.84 (1878), p. 11.Î Sylvester has called a matrix "non-derogatory" when its characteristic function and minimum function are the same.§ American Mathematical Monthly, vol.43 (1936), p. 562.|| The "nullity" of a matrix is the difference between its order and rank 1f The "companion matrix" of P(x) is the matrix Pi defined in §3.