most recent 30 from http://mathoverflow.net 2013-05-19T05:44:38Z http://mathoverflow.net/feeds/user/19390 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/59282/sums-compact-objects-f-g-objects-in-categories-of-modules/81380#81380 Anonymous 2011-11-19T22:38:21Z 2011-11-19T22:38:21Z

<p>Group of rational numbers is sumpact. In older terminology sumpact for abelian categories is called small.</p>