%0 Generic %1 batagelj2003algorithm %A Batagelj, V. %A Zaversnik, M. %D 2003 %K core graph network %T An O(m) Algorithm for Cores Decomposition of Networks %U http://arxiv.org/abs/cs/0310049 %X The structure of large networks can be revealed by partitioning them to smaller parts, which are easier to handle. One of such decompositions is based on $k$--cores, proposed in 1983 by Seidman. In the paper an efficient, $O(m)$, $m$ is the number of lines, algorithm for determining the cores decomposition of a given network is presented.