2012/04/13 by Tanya Khovanova, Khovanova, Tanya
Mathematics · #00A08 #FOS: Mathematics #History and Overview (math.HO) #math.HO #msc:00A08
paper · pdf · doi:10.48550/arxiv.1204.3112
4 pages
arxiv created 2012/04/13 · arxiv updated 2012/04/17
This article is an expanded version of my talk at the Gathering for Gardner, 2012.