Goldman, Martin E. An algebraic classification of noncompact 2-manifolds. (English) Zbl 0232.57007 Trans. Am. Math. Soc. 156, 241-258 (1971). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 4 Documents MSC: 57N05 Topology of the Euclidean \(2\)-space, \(2\)-manifolds (MSC2010) 55N35 Other homology theories in algebraic topology PDFBibTeX XMLCite \textit{M. E. Goldman}, Trans. Am. Math. Soc. 156, 241--258 (1971; Zbl 0232.57007) Full Text: DOI