TY - BOOK AU - Groetsch,C.W. TI - Generalized inverses of linear operators: representation and approximation T2 - Pure and applied mathematics SN - 0824766156 PY - 1977/// CY - New York PB - M. Dekker KW - Linear operators KW - Generalized inverses KW - Approximation theory KW - Hilbert space N1 - Includes index ER -