Please how can i draw this vertical chart in Latex?

Question

How can i draw this diagram in latex?
Any help would be so apreciated, thanks in advance.

Vincent · Accepted Answer

Here's a very simple way to do it.

documentclass{article}
usepackage{amsmath}
begin{document}
begin{gather*}
boxed{text{difficult problem for an individual operator}} 
downarrow 
boxed{text{simpler problem for a (C^*)-algebra}} 
downarrow 
boxed{text{result for the (C^*)-algebra}} 
downarrow 
boxed{text{desired result for the individual operator}}
end{gather*}
end{document}

However, if the diagram was more complicated other tools (like TikZ) would be more appropriate.

Roland · Answer

You can do this with Tikz:
documentclass[border=1cm]{standalone}

usepackage{tikz}
usetikzlibrary{shapes.misc,positioning}

begin{document}
    
    begin{tikzpicture}[node distance=1cm,outer sep=0.5cm]

node[rectangle,,draw=black](a) at (0,0) {difficult problem for an individual operator};
    node[rectangle,draw=black,below=of a] (b) {simpler problem for a C*-algebra};
    node[rectangle,draw=black,below=of b] (c) {result for the C*-algebra};
    node[rectangle,draw=black,below=of c] (d) {desired result for the operator};
    
    draw [->] (a) edge (b) (b) edge (c) (c) edge (d);

end{tikzpicture}
    
end{document}

Please how can i draw this vertical chart in Latex?

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