A friend is studying in the Mathematics Department of NTU. He said that the mathematics department of NTU was second only to that of Peking University. Is it true?/You don't say. Is the Department of Mathematics of Nanjing University really second only to Peking University? Of course, from the teaching point of view, they are all 985 colleges and universities in the front row, so it seems that the problem is not very big. If we want to talk about mathematical research, then the mathematical research of Nantah still needs to be improved. Give two concrete examples. First, there are 14 first-class mathematics disciplines, but there is no Nantah; Secondly, in addition to training Academician Tian Gang, NTU's current mathematics talents are dying out. I mean high-end math researchers who feel overwhelmed. There is no Nantah among the six major mathematics schools in China, so it is not an exaggeration to say that it is second only to Peking University. At least Fudan, HKUST, Chinese Academy of Sciences and Nankai are better at mathematics than Nanda, so it is not too late to add up the mathematics of Zhejiang University next door.