Skip to main content
Mathematics
David Gao's user avatar
David Gao's user avatar
David Gao's user avatar
David Gao
  • Member for 7 years
  • Last seen this week
  • UC San Diego
Profile Activity
Stats
9,938
reputation
32k
reached
267
answers
14
questions
#2 this week
Communities
About

I'm a PhD student at UCSD. My research area is mainly in von Neumann algebras, especially tracial von Neumann algebras.

Badges
View all badges
2
gold badges
19
silver badges
32
bronze badges
Top tags
View all tags
213
Score
124
Posts
44
Posts %
141
Score
44
Posts
16
Posts %
91
Score
49
Posts
17
Posts %
86
Score
52
Posts
19
Posts %
84
Score
42
Posts
15
Posts %
66
Score
38
Posts
14
Posts %
Top posts
View all questions and answers
52
Can a non-trivial continuous function "undo" the discontinuities of another function?
Apr 24
49
Why is there not a test for diagonalizability of a matrix
Jul 5
18
Understanding ZFC
Nov 23, 2023
12
Can Well Ordering Theorem Be Proved Without the Axiom of Power Set?
Jul 21, 2017
10
Proving that operator in $L^2[0,1]$ is compact
Jun 3
8
Concentration of measure on spheres with respect to a unitary of trace approximately zero
Mar 23
8
Is this "continuous" function really continuous?
Jul 12
7
Theory $\mathcal{T}$ with predicate $P$ that is satisfied by countably many elements in every model of $\mathcal{T}$?
Jun 10
7
The Lebesgue measures of open sets of points of epsilon distance from a compact set converge to the Lebesgue measure of that compact set
Oct 22, 2023
7
Is every continuum-sized dense subset of the irrationals order isomorphic to the irrationals?
Apr 18
Top network posts
View all network posts
13
Almost everywhere “filling” of the continuum by the first uncountable cardinal without CH
12
If $A, B$ is a non-trivial partition of $S^1$, is it possible that $R_\theta(A) \cap B$ has measure zero for all rotations $R_\theta$?
9
Comparison between the operator norm and the $L^1$ norm on group algebras
9
von Neumann subalgebra having separable predual
8
*-homomorphisms from $L^\infty(0, 1)$ to itself that acts as the identity on continuous functions