秦老2008年驾鹤西去。当年老教授虽在中科院数学所，但也是清华兼职教授，主持讨论班。

来源: wanttosaysomething 于 2021-06-08 12:41:41 [旧帖] [给我悄悄话] 本文已被阅读：次

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