{"version":"1.0","type":"link","title":"Nef polygon - Newikis","description":"In mathematics Nef polygons and Nef polyhedra are the sets of polygons and polyhedra which can be obtained from a finite set of halfplanes (halfspaces) by Boolean operations of set intersection and set complement. The objects are named after the Swiss mathematician Walter Nef (1919–2013), who…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}