Fadell, E. Homotopy groups of configuration spaces and the string problem of Dirac. (English) Zbl 0122.17803 Duke Math. J. 29, 231-242 (1962). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 22 Documents Keywords:topology PDFBibTeX XMLCite \textit{E. Fadell}, Duke Math. J. 29, 231--242 (1962; Zbl 0122.17803) Full Text: DOI