3,690 reputation
1930
bio website
location Baltimore, MD
age 24
visits member for 3 years, 7 months
seen 5 hours ago

Graduate student at Johns Hopkins University. Interests include Mathematical Physics, Particle Theory, Geometry (combinatorial, differential, and algebraic), Representation Theory, and Algebraic Topology.

I haven't been very active here recently. I'm currently pretty busy with research and teaching responsibilities, so I don't intend to answer any questions here unless they are somehow related to what I'm studying. This is honestly not much of a loss at all, as there are many capable users here who provide answers far better than what I am capable of.


Sep
24
awarded  Autobiographer
Sep
10
answered What is the meaning of this (potentially humorous) mathematical equation?
Sep
10
comment What is the meaning of this (potentially humorous) mathematical equation?
Random guess: $(1/i - 1/f)^{-1}$ is a reference to the thin lens equation. If they follow the same conventions as the introductory physics text I teach out of, I guess that would make it an "o". Still don't know what the thing means though.
Aug
15
comment Does $2+2$ really equal $4$?
...I don't care either way about this question (it's plainly uninteresting to me), but if you're really so concerned with duplicates and poorly specified questions, you should probably go about deleting several of those old answers and merging the rest into one. Otherwise you're causing exactly the same problems that you're accusing others of here. In all honesty, the answers here already more comprehensive than all those previous posts in my view, so this might be the better canonical question, but I don't care either way about that.
Aug
15
comment Does $2+2$ really equal $4$?
@Asaf given that you've answered very similar questions many times in the past, which together have all the problems you attribute to this one, (e.g. math.stackexchange.com/questions/243059 math.stackexchange.com/questions/95070 math.stackexchange.com/questions/588110 math.stackexchange.com/questions/348903 math.stackexchange.com/questions/306946 math.stackexchange.com/questions/299168), voting to close this one without doing anything about those seems a bit hypocritical to me. ...
Jul
2
awarded  Curious
Jun
15
comment Creating a Rubik's Cube Algorithm
Did you consider Puzzling SE for this question? Seems like a better fit there than here to me, though it's more-or-less fine here too in my opinion.
May
16
reviewed Leave Open Area of a part of a square
May
12
awarded  Nice Question
Apr
18
awarded  Excavator
Apr
18
revised How to prove $\cos \frac{2\pi }{5}=\frac{-1+\sqrt{5}}{4}$?
Corrected final expression
Mar
20
awarded  Yearling
Mar
5
comment Uncountable disjoint union of $\mathbb{R}$
I suspect you may be getting confused about the definition of a basis, which requires that for any pair of sets $B_1, B_2$ in $\mathcal B$, then each $x \in B_1 \cap B_2$ has a neighborhood $B_x \in \mathcal B$ contained in $B_1 \cap B_2$.
Mar
5
comment Uncountable disjoint union of $\mathbb{R}$
@DavidToth Sorry, I can't follow what you're saying. Anyway, my argument was just that for each $i \in I$, $\mathbb R \times \{ i \}$ is an open set in $\sqcup_I \mathbb R$. Hence, by definition, for any basis $\mathcal B$, $\mathbb R \times \{ i \}$ is a union of a collection of sets in $\mathcal B$ for each $i$. In particular, there exists a nonempty set $B_i \in \mathcal B$ which is contained in $\mathbb R \times \{ i \}$ for each $i$, and it's easy to see that these sets are pairwise disjoint. That defines an injection from $I$ to $\mathcal B$ which proves that the latter is uncountable.
Feb
9
comment Product of $n$ consecutive positive integer is not a $n$th power?
Sorry to be random, but was this question inspired by the anime Nisekoi? This problem was featured in episode 4 of that show, which aired a few days ago, and by chance I happened to spot this question here today. If not, it's probably still interesting to note.
Jan
11
comment Are the integers closed under addition… really?
I wrote a joke about using these sorts of arguments here.
Jan
3
awarded  Vox Populi
Jan
3
awarded  Talkative
Jan
3
awarded  Suffrage
Dec
21
reviewed No Action Needed Darboux's theorem of several variables