Ribbon disk
= Ribbon disk
{wiki=Ribbon_knot}
A ribbon disk is a slice disk whose radial Morse function has no interior local maxima. It can be built from disks by attaching bands.
= Ribbon disk
{wiki=Ribbon_knot}
A ribbon disk is a slice disk whose radial Morse function has no interior local maxima. It can be built from disks by attaching bands.