Jul 2026
Stronger Memory-Query Tradeoffs for Convex Optimization: The Limitations of Subquadratic Memory
This work proves two lower bounds for the first order oracle complexity of minimizing a $d$-dimensional $1$-Lipschitz convex function over the unit ball with $m$ bits of memory and is the first to show a sharp oracle complexity phase transition around $m\approx d^2$.
Michael Menart, Aleksandar Nikolov, Ohad Shamir
· arXiv.org · 0 citations