3 problems

For each admissible tilt parameter $\tau$, consider every nonterminating execution of BFGS applied to the one-dimensional tilted absolute-value objective $f_{\tau}$ using the Lewis…

Consider the $\ell_1$-norm rank-one symmetric matrix factorization problem and initialize the subgradient method randomly, with an initialization distribution absolutely continuous…

BFGS for the unit ball. The trial step $s$ converges to zero.