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William Sun

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 2 years, 2 months
  • 55 profile views
  • Last seen yesterday

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Top Posts (40) All Questions Answers | Votes Newest

8 Group isomorphism $h:(\mathbb R,+)\to (\mathbb R^+,\times)$ that is not an exponential function. Mar 26
6 Question of whether two given spaces are homeomorphic. Jul 17 '18
5 What is a good route for a math student to self study computer science systematically and efficiently? [closed] Jan 2
4 Does calculating the limit of a given real-valued (recursive) sequence already imply its convergence? Dec 6 '18
4 Sum of a nilpotent element and a zero divisor in a commutative ring $A$. Jul 19 '18
4 Can we extend a linearly independent list in a f.g. module of a commutative ring? Sep 19 '17
3 When does a generating set for a free module contain a basis? Oct 1 '17
3 Find fixed point domain in $\mathbb{R}^n$ other than $D^n$. Oct 24 '17
3 Find the sum $\sum\limits_{i=1}^{n}i^k$ using integration. Nov 13 '17
2 Why do we define regular open/closed sets? Dec 15 '18
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