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5

You can do better than six years ago. I define a generic macro for lowering the subscript as if a superscript is present. For g, one needs to make it math active and supply a definition for it, with the common \lowercase trick. In order to save the standard math g, we need to copy its math code. \documentclass{article} \usepackage{amsmath,xparse} \...


5

You can force it in one of several ways. One way is to insert a strut of the right height in the subscript, to lower the rest. Another is to insert a phantom superscript. \documentclass{article} \usepackage{bm,mathtools} \begin{document} \begin{displaymath} (\bm{^{E}_{I}q}) (\bm{^{E}q_{\rule{0pt}{6pt}I}}) (\bm{^{E}q_{I}^{\vphantom{E}}}) \end{displaymath} ...


0

I have reduced your long code and I have done a MWE that works correctly to have the first picture. \documentclass[a4paper,12pt]{article} \usepackage{amsmath,amssymb} \usepackage{mathpazo} \usepackage[all]{xy} \newcommand{\Z}{\mathbb{Z}} \newcommand{\C}{\mathbb{C}} \begin{document} \xymatrix{ (\Z/n\Z)^{\ast} \ar[dr]_{\mod f} \ar[rr]^{\chi} & & \...


0

Here is maybe an easier fix yet - just nest overset in underset, or the other way around, as in: v_t(j)=\overset{N}{ \underset{i=1}{max}} \hspace{0.1cm} v_{t-1}(i)a_{ij}b_j(o_t)


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