How to draw an Auslander-Reiten quiver?

Question

Please, help me in typesetting the following diagram, I'm not an expert in drawing with LaTeX.

Welcome to TeX.SX! Please, have a look at http://texdoc.net/texmf-dist/doc/latex/tikz-cd/tikz-cd-doc.pdf By the way, this is not an Auslander-Reiten quiver, but simply a quiver. — egreg, Jun 18 '18 at 21:28

score 9 · Answer 1 · edited Jul 03 '18 at 22:27

9

I have used the advice of the excellent user @egreg. You can change the tip of the vectors by looking at this link: Is it possible to change the size of an arrowhead in TikZ/PGF?. I believe that the diagram that uses the arrows in that way is from the package xymatrix.

\documentclass{article}
\usepackage{newtxtext,newtxmath}
\usepackage{tikz-cd,amssymb}

\begin{document}


\begin{tikzcd}[column sep=huge,row sep=small] 
1 \arrow[rd, "\alpha"] \\ & 3 & 4 \arrow[l, "\gamma"'] \\ 
2 \arrow[ru, "\beta"'] \end{tikzcd} 

\end{document}

FIRST ADDENDUM

\documentclass{article}
\usepackage{newtxtext,newtxmath}
\usepackage{tikz-cd,amssymb}
\newcommand{\pmat}[4]{\begin{pmatrix} #1 & #2 \\ #3 & #4\end{pmatrix}}
\begin{document}


\begin{tikzcd}[column sep=huge,row sep=small] 
1 \arrow[rd, "\pmat{-1}{5}{5}{1}"] \\ & 3 & 4 \arrow[l, "\gamma"'] \\ 
2 \arrow[ru, "\beta"'] \end{tikzcd} 

\end{document}

SECOND ADDENDUM From a suggestion of @Bernard's comment I have added psmallmatrix environment (from mathtools).

\documentclass{article}
\usepackage{newtxtext,newtxmath,mathtools}
\usepackage{tikz-cd,amssymb}
\newcommand{\smat}[4]{\begin{psmallmatrix} #1 & #2 \\ #3 & #4\end{psmallmatrix}}
\begin{document}


\begin{tikzcd}[column sep=huge,row sep=small] 
1 \arrow[rd, near start, "\smat{-1}{5}{5}{1}"] \\ & 3 & 4 \arrow[l, "\gamma"'] \\ 
2 \arrow[ru, "\beta"'] \end{tikzcd} 

\end{document}

edited Jul 03 '18 at 22:27

Bernard

271,350

answered Jun 18 '18 at 21:14

Sebastiano

54,118

it was wonderful. Thank you for your help @egreg – tuce Jun 18 '18 at 21:28
how can I write matrices instead of alpha, gamma, beta on arrows @egreg , – tuce Jun 18 '18 at 21:36
how can I write matrices instead of alfa beta gamma on arrows @sebastiano – tuce Jun 18 '18 at 21:38
on the same diagram you could write on the arrows as a matrix. – tuce Jun 18 '18 at 21:49
no problem @sebastion you are perfect :) – tuce Jun 18 '18 at 22:32
@tuce ahahahah I'm not perfect: I want to be the last of the last. – Sebastiano Jun 18 '18 at 22:35
May I suggest that perhaps the psmallmatrix environment (from mathtools) would be more appropriate here? – Bernard Jun 18 '18 at 23:24
@Bernard You are always welcome for me. You are authorized to change my code or to add anything. – Sebastiano Jun 19 '18 at 07:49
@Sebastiano: OK, I'll do it at once. – Bernard Nov 25 '18 at 19:45

How to draw an Auslander-Reiten quiver?

1 Answers1