document.write("«&nbsp;<a href='/news/view?id=60093'>Exploring the bounds on the positive semidefinite rank. (arXiv:1704.06507v1 [cs.CC])</a>");document.write(" | ");document.write("<a href='/news/view?id=60095'>Extendibility of Some P_{k} Sets. (arXiv:1704.06554v1 [math.NT])</a>&nbsp;»");