2 papers
math.OC2026
Newton Method for Fixed-Support Doubly Entropic Wasserstein Barycenter
Jianting Pan, Sirong Dai, Lei Yang +3
We study the fixed-support doubly regularized Wasserstein barycenter problem. Using the semi-dual formulation of entropic optimal transport, we reformulate the problem as a smooth,…
math.OC2026
Unified Ergodic Primal-Dual Gap Rates with Unhalved Primal Stepsizes
Sirong Dai, Ming Yan
We study ergodic primal-dual gap rates for first-order primal-dual methods applied to \[ \min_x f(x)+g(x)+h(Ax), \] where is smooth and convex, and are proper, closed,…