Wikipedia:Articles for deletion/Envelope model
as written, the article is .  Based on the original paper (and *all* the references are from one of two authors, who have collaborated on several papers), it is both  and . I see no reason to keep the article other than that there is enough mathematical mumbo-jumbo to confuse non-technical editors.  After reading the original source, *I* know what most of it means, but I see no way any reader could do so from the article as written
— User:Power, 18:42, 16 May 2017 (UTC)
Stance: comment
Cited policy: WP:TNT||WP:GNG||WP:NOR (Wikipedia:Blow it up and start over)