The Equality Constrained Indefinite Least Squares Problem: Theory and Algorithms - Bojanczyk, Adam; Higham, Nicholas J.; Patel, Harikrishna (BIT (Nordisk Tidskrift for Informationsbehandling), 2003)
Keywords: Error analysis; Exact sciences and technology; Mathematics; Numerical analysis; Numerical analysis. Scientific computation; Numerical linear algebra; Sciences and techniques of general use; Perturbation theory; Orthogonal matrix; Error analysis; Numerical linear algebra; Least squares problem; Hyperbolic QR factorization; Hyperbolic rotation; Rounding error; Forward stability; Numerical analysis; Cholesky method; Equality constraint; Quadratic form; J matrix