I am Xu Jinsheng (family name + given name). Welcome to my personal webpage. My friends normally call me Xu, as it makes lives easier.
Here, I record my thoughts on books, theorems, problems, etc. So, this website is my very portable notebook. Not all statements are guaranteed to be correct.

About me:

Current study (reviewing and learning):

Site map:
(1) Mathematics:

(2) Something else (not maintained):

I like algebra, analysis, logic, quality sleep, simple living, adventures.
I don't like texting.

Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License