document.write("«&nbsp;<a href='/news/view?id=80512'>Deep breath: Hyperloop-related Arrivo chooses Denver, but tickets to ride far off</a>");document.write(" | ");document.write("<a href='/news/view?id=80514'>Diffeomorphism groups of critical regularity. (arXiv:1711.05589v1 [math.GR])</a>&nbsp;»");