I want to make a commutative diagram which looks like:

enter image description here

I tried the following code:


A\arrow[r,"\phi_n"]  \arrow[d,swap,"\text{id}"]&

A_n  \arrow[dl,swap,"\psi_n"] \arrow[dr,"\pi_n"]\\

\mathbb{B}(H) && \mathbb{B}(H_n) 


This gave me a portion of the diagram. How do I get the other half?


Think to a matrix and add the arrows:



\begin{tikzcd}[row sep=huge]
A \arrow[r,"\phi_n"] \arrow[d,swap,"\pi"] &
A_n \arrow[r,"\epsilon_{i,n}"] \arrow[dl,swap,"\psi_n"] \arrow[dr,"\pi_n"] &
M_{n_k}(\mathbb{C}) \arrow[d,"\eta_{i,n}"]
B(H) & & B(H_n) \arrow[ll,dashed]


enter image description here

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.