Eilenberg, Samuel; MacLane, Saunders Determination of the second homology and cohomology groups of a space by means of homotopy invariants. (English) Zbl 0061.40707 Proc. Natl. Acad. Sci. USA 32, 277-280 (1946). Reviewer: P. J. Hilton Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 9 Documents MSC: 55Nxx Homology and cohomology theories in algebraic topology Keywords:second homology groups and cohomology groups of a space; homotopy invariants × Cite Format Result Cite Review PDF Full Text: DOI Link