Though I have solved this problem, I still want to hear the LaTeX community on this point. I also need to know if I have misunderstood anything, or if my fix is wrong.
I have the following mathematical expression:
S_p = \bigcup_{c \in C_p}^{\abs{C_p}} L_c \enspace \text{,}
which results in this:
Not the annoying space between capital S and its subscript.
It figured out a way to avoid that by using a negative thin space \!
:
{S\!}_p = \bigcup_{c \in C_p}^{\abs{C_p}} L_c \enspace \text{,}
which gives me:
And the problem seems solved.
Both graphics are screenshots from a zoomed PDF document in Acrobat Reader X. I am using the elsarticle class (Elsevier's LaTeX class). The blue text was marked with the mouse.
Questions:
- Is my fix using the negative thin space correct?
- Or is there a better way?
- Is this a known problem with S and its subscript in general, or is is dependent on class used? I have not tried using the standard article class yet.
I have studied What is the right way to use the `\!` spacing command? and it seems to be an acceptable way to fine tune mathematical expression.
mathptmx
font package, which gives you text and math fonts based on Times Roman. Be advised that most Elsevier journals use a proprietary font called Gulliver rather than Times Roman. (See tex.stackexchange.com/a/45917/5001 for more information.) As such, it may not be worth your time and effort to optimize the look of some math expressions (by inserting negative thin spaces) in your paper, because these adjustments will have to be undone in all likelihood when the paper is typeset in Gulliver. – Mico Jul 16 '12 at 16:19