document.write("«&nbsp;<a href='/news/view?id=85181'>Chrome OS 64 beta allows Android apps to run in the background</a>");document.write(" | ");document.write("<a href='/news/view?id=85183'>Closed G$_2$-structures on non-solvable Lie groups. (arXiv:1712.09664v1 [math.DG])</a>&nbsp;»");