document.write("«&nbsp;<a href='/news/view?id=81557'>Enclosure of the Numerical Range and Resolvent Estimates of Non-Selfadjoint Operator Functions. (arXiv:1711.11337v1 [math.FA])</a>");document.write(" | ");document.write("<a href='/news/view?id=81559'>Every iPhone X Is Not Created Equal</a>&nbsp;»");