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Special functions, orthogonal polynomials, harmonic analysis, ordinary differential equations (ODE's), differential relations, calculus of variations, approximations, expansions, asymptotics.

5 votes

Infinite product experimental mathematics question.

Aha, I get Gjerji's insight, and I should have seen it sooner, but I was stuck on dealing with series representations by logarithms. The second product looks like this: $\sqrt[1]{\frac{2}{1}}\sqrt[ …
graveolensa's user avatar
7 votes
2 answers
684 views

Infinite product experimental mathematics question.

A while ago I threw the following at a numerical evaluator (in the present case I'm using wolfram alpha) $\prod_{v=2}^{\infty} \sqrt[v(v-1)]{v} \approx 3.5174872559023696493997936\ldots$ Recently, f …
graveolensa's user avatar
2 votes
1 answer
334 views

Is there an nontrivial function whose 'period paralellograms' are Gosper Islands?

The Gosper island tiles the plane, so I'm curious if a nontrivial elliptic? function exists which would have a 'period gosper-island' instead of a period parallelogram. In this case, I'm using 'trivia …
graveolensa's user avatar
11 votes
1 answer
467 views

turn $\pi/n$, move $1/n$ forward

start at the origin, first step number is 1. turn $\pi/n$ move $1/n$ units forward Angles are cumulative, so this procedure is equivalent (finitely) to $$ u(k):=\sum_{n=1}^{k} \frac{\exp(\pi i …
graveolensa's user avatar