据说他的博士论文选题是一个连导师也惊讶的很难的open问题，估计时间都花在上面了。搞数学选题很重要，弄不好多年出不了文章

来源: 方外居士于 2025-10-29 18:58:22 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.