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galowicz.de
| | www.jeremykun.com

For fixed integers $ r > 0$, and odd $ g$, a Moore graph is an $ r$-regular graph of girth $ g$ which has the minimum number of vertices $ n$ among all such graphs with the same regularity and girth. (Recall, A the girth of a graph is the length of its shortest cycle, and it's regular if all its vertices have the same degree) Problem (Hoffman-Singleton): Find a useful constraint on the relationship between $ n$ and $ r$ for Moore graphs of girth $ 5$ and degree $ r$.
4.6 parsecs

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| | leanprover-community.github.io

[AI summary] A technical documentation entry for the Lean mathematical library detailing definitions and operations for semimodules, modules, matrices, linear maps, and bilinear forms
3.4 parsecs

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| | www.scijournal.org

This guide will show you how to write a dot product in LaTeX
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| | leimao.github.io

Jacobian Matrix, De Novo Chain Rule Expression, Jacobian-Vector Product, Vector-Jacobian Product
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