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数学科学学院学术报告Advancing Generative Models through Topological Perspectives Informed by Discrete Morse Theory明杨（湖北理工学院）时间：2025-11-12 10:30-11:30地点：沙河主楼E806摘要：This presentation explores the innovative intersection of Discrete Morse Theory and generative models, offering a novel topological framework to enhance data generation processes. By leveraging topological insig...
数学科学学院学术报告 A Memory Efficient Randomized Subspace Optimization Method for Training 袁坤 （北京大学） 报告时间：2025年11月11日 星期二 上午10：30-11：30报告地点：沙河校区E806报告摘要：The memory challenges associated with training Large Language Models (LLMs) have become a critical concern, particularly when using the Adam optimizer. To address this issue, numerous memory-efficient tec...
数学科学学院学术报告 Riemannian Optimization and a Riemannian Proximal Newton-CG Method 黄文（厦门大学数学科学学院） 报告时间：2025年11月11日 星期二 上午9：30-10:30报告地点：沙河校区E806报告摘要：Optimization on Riemannian manifolds, also called Riemannian optimization, considers finding an optimum of a real-valued function defined on a Riemannian manifold. Riemannian optimization has been a to...
数学科学学院学术报告Constructions of expander graphs and surfaces沈洋（复旦大学）时间：2025-11-04 16:00—17:00（周二下午）地点：沙河主楼E402 摘要：In this talk, we will review some relative results of spectrums on graphs and hyperbolic surfaces, and introduce a new model of random graphs. Based on the study of such model, we constructed a sequence of non-compact hyperbolic surfaces with unifor...
数学科学学院学术报告 Optimization flows landing on the Stiefel manifold 高斌（中国科学院数学与系统科学研究院） 报告时间：2025年11月4日 星期二 上午10：30-11：30报告地点：沙河校区E806报告摘要：We study a continuous-time system that solves optimization problems over the set of orthonormal matrices, which is also known as the Stiefel manifold. The resulting optimization flow follows a path that is ...
数学科学学院短期课程Almost mathematics in log-perfectoid toric mirror symmetry张秉宇（南丹麦大学）时间：2025.11.04-11.18 14:00—15:00（每周二下午）地点：腾讯会议：686-9079-9616（密码：1024）摘要：In these lectures, I will explain a version of toric mirror symmetry equivalence proposed by D. Vaintrob that relates the category of all topological sheaves and the category of almost quasi-coherent ...
