Then relative interior is introduced and an alternative theorem of generalized convex set-valued maps is established by using the separation theorem.

These newproperties are expressed in terms of the properties of arid relationships between the levelset, the upper level set, the relative interior, and the relative boundary of the upper levelset.

While the gamers stalked and shot the enemy from the relative discomfort of a scanner's interior, the researchers recorded events in their brains.