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Mathematics
Jay Zha's user avatar
Jay Zha's user avatar
Jay Zha's user avatar
Jay Zha
  • Member for 7 years, 9 months
  • Last seen more than 1 year ago
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Math is beautiful, enjoy it!

I had M.S. in Financial Engineering at Columbia University, and work at Bloomberg L.P. I am a CFA Charter Holder. Two useful links: MathJax, Real Analysis By Richard F. Bass

List some of my answers for questions I found interesting:

I love Chinese literature and history, and I am a regular swimmer. I could be reached by zhayujie(at)hotmail(dot)com

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53
A very general method for proving inequalities. Too good to be true?
Apr 30, 2017
20
What is the intuition for using sigma algebras to define probability spaces?
Jun 23, 2017
16
Area of an acute triangle, given two sides and an altitude
Mar 13, 2017
14
Stochastic Differential Equation solution for Geometric Brownian Motion
May 19, 2017
13
How do you construct a function that is continuous over $(0,1)$ whose image is the entire real line?
Mar 25, 2017
11
Is $\sigma$-finiteness unnecessary for Radon Nikodym theorem?
Sep 2, 2019
10
Riemann rearrangement theorem
Mar 18, 2017
9
Why this function is not integrable
Jun 5, 2019
8
If $ a^{2} + b^{2} = c^{2}$ and $c$ is even, prove that $a$ and $b$ are both even.
Jul 29, 2017
7
How do I solve $x^4 -2x^3-6x^2-2x+1=0$?
Jul 22, 2017