document.write("«&nbsp;<a href='/news/view?id=80118'>Note on character varieties and cluster algebras. (arXiv:1711.03379v1 [math-ph])</a>");document.write(" | ");document.write("<a href='/news/view?id=80120'>On Euler characteristic and fundamental groups of compact manifolds. (arXiv:1711.03309v1 [math.DG])</a>&nbsp;»");