# Omitting subscripts in proofs/equations in math/computer science papers

I am writing a paper that is in two column format, and I am working on a proof that I am having trouble making readable in the two column format.

Specifically, I am working with subscripts such as t-1, t, and t+1, but the subscripts t-1 and t+1 make the equations too long. If I omit the subscripts, then the proof is not clear, if I include the subscripts, the equations span many lines...

I am not sure what I should do.

Note: I am not sure if this is a proper stack exchange site.

Edit: I am deriving a function that looks like this x_{i+k} = g(x_i,\theta_{i,i+k}) where $\theta_{i,i+k}$ is a complicated parameter that take x_i to x_{i+k}. I derived earlier in the paper a recurrence x(i+1) = g(x_i, a, b, ...). So, in the proof, I am showing how to compute \theta_{i,i+k}.

• It's difficult to advise on the formatting of equations without a concrete example. There are likely some tricks that you can use, but they really depend on your equations. Can you give a equation? Commented Nov 25, 2020 at 16:07
• One solution is to bundle equations into a two-column figure. Commented Nov 25, 2020 at 16:07
• @user2768 The equation is complex, but I edited my question to include the general idea if that is helpful. Commented Nov 25, 2020 at 16:32
• A proper stack exchange site or the proper stack exchange site? If the former, then yes we are :) if the latter, you may find some useful info at tex.stackexchange.com. Commented Nov 25, 2020 at 17:59
• If you're using LaTeX, APS journals typically accept the widetext environment to span the two columns, which is available from revtex. You could try that out, although your specific publisher may not accept it. Commented Nov 25, 2020 at 22:07