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1882146
bio website plaza.ufl.edu/gruberan
location Gainesville, FL
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visits member for 3 years, 6 months
seen 5 hours ago

$$\mathfrak{I}\text{ }\mathfrak{AM}\text{ }\mathfrak{A}\text{ }\mathfrak{GREAT}\text{ }\mathfrak{MAGICIAN!}$$

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did you know that cigarette lighters were invented before matches?

Interesting reading:

First, there are many good posts to be found among the longest answers.

I'm a fan of the posts by this mysterious stranger. Sometimes, we need a Man in Black to chase.

I have learned a lot from Arturo Magidin's posts here about group theory. Here's one of my favorite examples.


1h
awarded  Enlightened
2h
awarded  Nice Answer
2d
reviewed Close How to prove that a ring is not flat over $k[t,s]$?
2d
reviewed Close Why are the two definitions of covariance equal?
2d
reviewed Close Is this transformation affine?
2d
reviewed Leave Open Assigning tables for Speed Networking session
2d
reviewed Close What are the irreducible representations $V$ for $S_n$ over ${\bf C}$ that admit a nonzero vector fixed by $S_{n-1}$?
2d
reviewed Close Why are the squares on a chess board congruent figures?
2d
reviewed Close How to prove that $f$ is differentiable at every point beside $x=-1$?
2d
reviewed Leave Open How to measure how difficult an exercise in a programming contest is?
2d
reviewed Leave Open Prove the limit as $x$ approaches $0$, $\frac{\sin(x)}{x}$ approaches $1$ using the epsilon delta definition
2d
reviewed Leave Open What is the optimal investing solution for the given simulated market?
2d
reviewed Close Prove$\sum_{n=0}^{\infty} \frac{n}{(n+1)^2}-\frac{1}{n+2} $ is convergent
2d
reviewed Close absolutely convergent & conditionally convergent
2d
reviewed Leave Open Uniformly convergent & point convergent
2d
reviewed Close Find the number of children, given that the estate was divided evenly between them
2d
reviewed Close Link between time and complex amplitude argument, DFT
2d
reviewed Close all the squares in the multiplicative group $\mathbb{Z}_n^*$.
2d
reviewed Leave Closed Proving $1+\sum_{i=1}^n i (i!)=(n+1)!$
2d
accepted Converting GAP groups into SAGE permutation groups.