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felipec.wordpress.com
| | fundamenta.micro.blog
11.3 parsecs away

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| | En física, una partícula elemental es una entidad fundamental que desafía definiciones simples: puede entenderse como la excitación cuántica de un campo, la representación matemática de simetrías o la manifestación de información cuántica, lo que refleja la complejidad y el misterio de la realidad: What is a Particle? » ????
| | dominiczypen.wordpress.com
7.1 parsecs away

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| | Let $latex \omega$ denote the first infinite cardinal - that is, the set of non-negative integers. Let $latex p_0 = 2$ be the smallest prime number, and let $latex (p_n)_{n\in\omega}$ enumerate all prime numbers in ascending order. Let $latex \mathcal{U}$ be a free ultrafilter on $latex \omega$. We consider the field $latex F = \big(\prod_{n\in\omega}\mathbb{Z}/p_n\mathbb{Z}\big)/{\mathcal...
| | mathematicaloddsandends.wordpress.com
7.2 parsecs away

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| | The function $latex f(x) = x \log x$ occurs in various places across math/statistics/machine learning (e.g. in the definition of entropy), and I thought I'd put a list of properties of the function here that I've found useful. Here is a plot of the function: $latex f$ is defined on $latex (0, \infty)$. The only...
| | qchu.wordpress.com
38.5 parsecs away

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| (Part I of this post ishere) Let $latex p(n)$ denote the partition function, which describes the number of ways to write $latex n$ as a sum of positive integers, ignoring order. In 1918 Hardy and Ramanujan proved that $latex p(n)$ is given asymptotically by $latex \displaystyle p(n) \approx \frac{1}{4n \sqrt{3}} \exp \left( \pi \sqrt{ \frac{2n}{3}...