主講人：徐洪坤 杭州電子科技大學教授

時間：2025年5月27日10：00

地點：徐匯校區三號樓332室

舉辦單位：數理學院

主講人介紹：徐洪坤教授就職于杭州電子科技大學，主要從事非線性分析與優化領域的研究；早年博士畢業于西安交大，師從我國著名計算數學家游兆永教授；已入選兩院院士 (南非科學院院士、發展中國家科學院院士)。

內容介紹：Halpern and extra-anchor (EA) methods are popular techniques in variational inequalities (VIs), minimax and fixed point problems (FPPs). EA can relax the monotonicity condition on the operator A that defines the variational inequality since even if A is linear, monotone, Lipschitz continuous in a finite-dimensional framework, the gradient projection method may fail to converge. Extra-gradient (EG) can however assure convergence. In addition, both EG and EA can also speed up the rate of convergence. In this talk we will discuss recent progresses in EG and EA for solving VIs, minimax, and FPPs.