2

For example, I have this

\documentclass[12pt,reqno]{book} 
\usepackage{dynkin-diagrams}
\begin{document} 
\[ 
\begin{array}{cc} 
A_1 \times A_1 & \dynkin{A}{1}\dynkin{A}{1} \\ 
A_2 & \dynkin{A}{2} \\ 
B_2 & \dynkin{B}{2} \\ 
G_2 & \dynkin{G}{2} 
\end{array} 
\]
\end{document}

I would like to have a larger graph, and also I would like to give names to vertices like in chapter 13 page 145 of the book cited in a related question.

  • The formatting is unreadable (please format code as a block of code) and the question is not specific enough for me to know what you would like. Can you provide an example of the output you want? – Davislor Aug 24 '19 at 16:59
  • Welcome to TeX.SX! He might know when you properly format the code. select the code block and use the '{}' on top of the edit window. To address someone please use @... this regarding your "Answer" – albert Aug 24 '19 at 17:28
5

First an unrelated comment: use \[ ... \], not $$ ... $$ for display math, see Why is \[ ... \] preferable to $$ ... $$?.

As mentioned in section 2 of the dynkin-diagrams manual, you can set global options for how the diagrams should look. For example with

\pgfkeys{
  Dynkin diagram,
  edge length=1cm,
  root radius=2pt
}

you get 1cm between the dots in your diagrams, and the dots get a radius of 2pt.

For labels, the package has options for this. I don't have the book you are referring to (so a description, or sketch, would be more helpful), but for example with \dynkin[labels={a,b}]{A}{2} the two vertices get the labels a and b below them.

enter image description here

\documentclass[12pt,reqno]{book} 
\usepackage{dynkin-diagrams}
\pgfkeys{
  Dynkin diagram,
  edge length=1cm,
  root radius=2pt
}
\begin{document} 
\[
 \begin{array}{cc}
  A_1 \times A_1 & \dynkin{A}{1}\dynkin{A}{1} \\
  A_2 & \dynkin[labels={a,b}]{A}{2} \\
  B_2 & \dynkin{B}{2} \\
  G_2 & \dynkin{G}{2}
\end{array} 
\] 
\end{document}
  • Thank you Torbjorn T. – Adam Hammam Aug 24 '19 at 23:14

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