A look at the convergence of the augmented  Lagrange method for nondifferentiable convex programming from  the view of a gradient method with constant stepsize
TIAN Zhaowei, ZHANG Liwei
Operations Research Transactions . 2017, (1): 111 -117 .  DOI: 10.15960/j.cnki.issn.1007-6093.2017.01.011