activity
20242026
collaborators
Showing math.OCShow all

5 papers · 1 filter

math.OC2026

Fast primal-dual methods for convex-concave bilinear saddle point problems: continuous-time dynamics and discrete algorithms

Xin He, Ya-Ping Fang

This paper studies Nesterov accelerated methods for continuously differentiable convex-concave bilinear saddle point problems. For the continuous-time model, we analyze a second-or…

math.OC2026

Convergence of iterates and improved rates for accelerated augmented Lagrangian methods for linearly constrained convex optimization

Xin He, Nan-Jing Huang, Yi-Bin Xiao +1

Motivated by an inertial primal-dual dynamical system with vanishing damping, we propose a class of accelerated augmented Lagrangian methods with Nesterov extrapolation parameters…

math.OC2026

Trajectory convergence and rates for Nesterov accelerated primal-dual dynamics without Lipschitz gradient assumption

Xin He, Nan-Jing Huang, Yi-Bin Xiao +1

We consider the Nesterov accelerated primal-dual dynamical system \[ \begin{cases} \ddot{x}(t)+\dfracα{t}\dot{x}(t) +\nabla f(x(t)) +A^\top\bigl(λ(t)+θt\dotλ(t)\bigr)+βA^\top(…

math.OC2025

Nesterov acceleration for strongly convex-strongly concave bilinear saddle point problems: discrete and continuous-time approaches

Xin He, Ya-Ping Fang

In this paper, we study a bilinear saddle point problem of the form , where and are - and -strongly convex f…

math.OC2024

Accelerated linearized alternating direction method of multipliers with Nesterov extrapolation

X. He, N. J. Huang, Y. P. Fang

The alternating direction method of multipliers (ADMM) has found widespread use in solving separable convex optimization problems. In this paper, by employing Nesterov extrapolatio…