Birkhoff, George D. On the polynomial expressions for the number of ways of coloring a map. (English) Zbl 0008.22601 Ann. Sc. Norm. Super. Pisa, II. Ser. 3, 85-103 (1934). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 4 Documents Keywords:topology × Cite Format Result Cite Review PDF Full Text: Numdam EuDML