Charles Hudgins's user avatar
Charles Hudgins's user avatar
Charles Hudgins's user avatar
Charles Hudgins
  • Member for 5 years, 1 month
  • Last seen this week
23 votes

Longest 'increasing' path inside a square

18 votes

Subset of knight's move in chess.

9 votes
Accepted

Defining manifold coordinates without an embedding

8 votes

Show $\sum\limits_{i=1}^n \sum\limits_{j=1}^n \cos(x_i - x_j) \geq 0$ for all real sequences $(x_i)_{1\leq i\leq n}$

7 votes
Accepted

Geometric Intuition for Hamiltonian Actions

6 votes
Accepted

Ideal of a group

6 votes
Accepted

What is the difference, geometrically, between row vectors and column vectors?

6 votes
Accepted

If $A$ and $B$ are commuting Hermitian matrices, then they have the same eigenvectors?

6 votes
Accepted

Degrees of freedom in an equation

6 votes

Show that $(1+x)^{(1+x)}>e^x$

5 votes

Mathematical Logic unusual question

5 votes
Accepted

Evaluating $ \lim_{a \to 0} \frac{\tan(x+a)-\tan x}{a} $

4 votes
Accepted

Where does the $2\pi$ in Fourier Transform Dirac delta identity come from?

4 votes
Accepted

Does there exist an onto homomorphism from $(\mathbb{Z}_6,+)$ to $(\mathbb{Z}_4,+)$ and why?

4 votes
Accepted

Expected number of regions with $n$ random lines in a circle

4 votes
Accepted

Can a Closed interval be a basis for Usual topology on$R$?

4 votes
Accepted

Coming up with explicit formula for $f_\ast$

4 votes
Accepted

$ \sum_{i=1}^{10} x_i =5 $, and $ \sum_{i=1}^{10} x_i^2 =6.1 $ ; Find the largest value of these ten numbers

4 votes

How is this format a line integral?

3 votes

Is there a relationship between slope of the curve $ f(x, y) = 0 $ and the partial derivative $ \frac{\partial f}{\partial x} $?

3 votes

Total derivative equals partial derivative?

3 votes

Novel solution to $\lim_{n \to \infty}\sqrt{n^2 + n} - n$

3 votes
Accepted

Flawed Proof of Fundamental Theorem of Calculus?

3 votes

Trace of product of $SU(N)$ generators positive definite

3 votes
Accepted

identity tensor proof

3 votes

i'm 16 years old, what will I have to do from now on in the next few years to become a great mathematician?

3 votes
Accepted

$\epsilon-\delta$ definition of continuous functions

3 votes
Accepted

Is the hypothesis of $G$ being a finite group necessary in this exercise?

3 votes

Help in reading Set Notation

3 votes

Understanding exactness and finding a potential.$[e^x\cos(\pi y^2)+ay-1]dx+[by\; e^x\sin(\pi y^2)+x+y]dy$

1
2 3 4 5 6