This is a like of text with and equation $a^2+b^2=c^2$.
\[\sum_{n=0}^{\infty}2^{-n}=2\]
Let’s see if a commutative diagram works.
\[\require{AMScd}
\begin{CD}
\mathbb{Z}/p^n\mathbb{Z} @>{\theta_{n+1,\alpha}}>> U_1/U_{n+1}\\
@VVV @VVV\\
\mathbb{Z}/p^{n-1}\mathbb{Z} @>{\theta_{n,\alpha}}>> U_1/U_n
\end{CD}\]