We study the global convergence properties of the restricted Broyden class of quasi-Newton methods, when applied to a convex objective function. We assume that the line search satisfies a standard ...

Commerce is an exchange between at least two parties of goods or services for money. The word often implies large-scale transactions.

President Trump said he was considering sending troops to Chicago, New York and Baltimore. State and local leaders say they have crime under control. By Alyce McFadden and Tim Balk Mr. Abrego ...