Article ID: | iaor19941067 |
Country: | Italy |
Volume: | 22 |
Issue: | 63 |
Start Page Number: | 63 |
End Page Number: | 70 |
Publication Date: | Sep 1993 |
Journal: | Ricerca Operativa |
Authors: | Spedicato Emilio |
Keywords: | optimization |
A class of sparse symmetric matrices satisfying the Quasi-Newton equation is derived. The class contains a free parameter and there is no need of explicitly solving a sparse linear system as was the case for previous updates considered in the literature.