Subresultants Linear algebra Mathematical techniques Multiple roots Arbitrary polynomial Bernstein polynomial Exchange lemma Explicit formula Extremal Formulas in roots Hankel matrices Hankel matrix Hypergeometric Matrix algebra Multiplicity structures Ostrowski Ostrowski's determinant Pfaff–Saalschütz identity Polynomials Schur function Schur functions Schur polynomials Sylvester double sums symmetric Lagrange interpolation