This is the fourth edition of a twice-yearly workshop that will alternate between the Southampton Centre for Geometry, Topology and Applications and the Beijing Institute of Mathematical Sciences and Applications. The aims are to promote exciting new work in homotopy theory, with an emphasis on that by younger mathematicians, and to showcase the wide relevance of the subject to other areas of m...
AbstractNesterov's accelerated gradient descent (NAG) is one of the milestones in the history of first-order algorithms. Until recently, it was not successfully uncovered by the high-resolution differential equation framework in [Shi et al., 2021] that the mechanism behind the acceleration phenomenon is due to the gradient correction term. Along this way, I present some recent advances about th...