Infinite conjugacy class group (source code)

= Infinite conjugacy class group
{title2=$\mathrm{ICC}$}

= ICC group
{c}
{synonym}

A discrete <group> is ICC when every nonidentity element has an infinite <conjugacy class>. The trivial <group> satisfies this condition vacuously. It characterizes when the <group von Neumann algebra> is a <Von Neumann factor>.