题目：A compact extension of Journé’s T1 theorem on product spaces
主讲人: 曹明明 (西班牙国家科学院数学科学研究所）
时间: 2023年8月30日（周三）， 14:30-16:00
线上链接：Zoom ID: 949 5369 0376 (Password: 388814))
摘要: In the 1980s, David and Journé proved the original theorem, which gave a characterization of the boundedness for Calderón–Zygmund operators based on testing conditions. Soon after, using the vector-valued Calderón–Zygmund theory, Journé first established a bi-parameter theorem. However, the theorem to deduce compactness of multi-parameter singular integrals has been open in the last several years. The purpose of this talk is to develop a general theory of the compactness for a class of bi-parameter singular integrals.