math-modesuperscripts
I'm a relative beginner with Lyx. When I type in this code I'm hoping for T' to be followed by superscripts and subscripts. Instead I get a "double superscript" error when I try to view the pdf
\[
T'_{\alpha_{1}\alpha_{2}\ldots\alpha_{n}}^{\mu_{1}\mu_{2}\ldots\mu_{m}}
\]
Any idea how I can fix this?
If you want the \Gamma at the same height as 0 in the exponent, but not next to 0, then use
$\tilde{C}^0_{\text{har}}{}^\Gamma$
The {} creates a new base for super-/subscripts that is separate from the first. If you want to place the \Gamma next to 0, then you have to combine the superscript (say) in the following way
$\tilde{C}^{0,\Gamma}_{\text{har}}$
If you want \Gamma to be a superscript of the entire preceding structure, then use
$\mbox{$\tilde{C}^{0}_{\text{har}}$}^\Gamma$
which will place the structure in a (text) box and allow superscripting. I prefer option 2 since options 1 & 3 has \Gamma practically in "the middle of nowhere." Note that I've used \text{...} to write har. This is by virtue of amsmath.
You can use a \mathstrut:
\documentclass{book}
\begin{document}
\[ C{\mathstrut}^{\,\,l_\beta}_{m_\beta}{\mathstrut}^2_0{\mathstrut}^{\,\,l_\alpha}_{m_\alpha} \]
\end{document}
Here is a proposition which may be fine tuned.
\documentclass{book}
\usepackage{amsmath}
\begin{document}
\[C\!%
\begin{smallmatrix}
l_{\beta} & \!\!2 & \!\!l_{\alpha} \\
m_{\beta} & \!\!0 & \!\!m_{\alpha}
\end{smallmatrix}
\]
\end{document}
Best Answer
You can insert
\primesymbol as part of the superscript^{...}, rather than having "two superscripts":