probml
Invisible text on p. 518
Looks like some text gets for some reason rendered in white, leading to it being impossible to read. It is hard to figure out whether or not it was originally supposed to be in this section or not (while the screenshots only shows little part of it, it is all over almost the entire page).
that's weird. I cannot see it on my pdf version, either locally or on the web.
Hm, that is weird! I've just downloaded the latest released version (2025-04-18), and when I open it (in Firefox or, like shown in the original screenshot, in the Ubuntu Document Viewer) I can select the text, in particular by clicking on and dragging in the empty space between the end of the section 15.3 and the beginning of 15.4. It seems that some readers do not actually show the transparent text when you select it, but it is definitely there.
Here, for reference, is the invisible text selected, copied, and pasted into the Windows Notepad:
It can also be found in the pdf document by searching some parts of it (e.g., "in this paper, the dilation"), and it only appears on this, 518 page.