document.write("«&nbsp;<a href='/news/view?id=77771'>Counting compositions over finite abelian groups. (arXiv:1710.06797v1 [math.CO])</a>");document.write(" | ");document.write("<a href='/news/view?id=77773'>Data-driven spectral analysis of the Koopman operator. (arXiv:1710.06532v1 [math.DS])</a>&nbsp;»");