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David Bowman

UChicago Class of 2020

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70 Let, $A\subset\mathbb{R}^2$. Show that $A$ can contain at most one point $p$ such that $A$ is isometric to $A \setminus \{p\}$. Nov 22 '16
17 Schur's Theorem: In $\ell^1$ weak convergence of $x_n$ is the same as convergence in the norm Mar 29 '17
16 Examples of closed sets with empty interior Dec 27 '16
15 Why is calculus considered to be difficult? Sep 14 '16
14 Prove function increasing Dec 19 '16
14 Good math books to discover stuff by yourself Jan 3 '17
11 If $\sin(2x)=0$, can we prove that $\cos(x)=0$? Dec 29 '16
6 Harnack Inequality for nonnegative subsolutions to uniformly elliptic PDE Jan 24 '19
6 On the solvability of the Dirichlet Problem $\Delta u =f$ for $f$ locally Holder continuous and $L^p$ for $p>n/2$ Feb 5 '19
6 What is the closure of $\ell_1$ in $\ell_2$? Sep 20 '17
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