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The second homotopy group of spun 2-spheres in 4-space


Authors: J. J. Andrews and S. J. Lomonaco
Journal: Bull. Amer. Math. Soc. 75 (1969), 169-171
DOI: https://doi.org/10.1090/S0002-9904-1969-12194-4
MathSciNet review: 0235559
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References [Enhancements On Off] (What's this?)

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  • 3. D. B. A. Epstein, Linking spheres, Proc. Cambridge Philos. Soc. 56 (1960), 215-219. MR 117740
  • 4. R. H. Fox, Free differential calculus. I: Derivation in the free group ring, Ann. of Math. (2) 57 (1953), 547-560. MR 53938
  • 5. R. H. Fox, Free differential calculus. III: Subgroups, Ann. of Math. (2) 64 (1956), 407-419. MR 95876
  • 6. R. H. Fox, Some problems in knot theory, Topology of 3-manifolds symposium, Prentice-Hall, Englewood Cliffs, N. J., 1962. MR 140100
  • 7. C. D. Papakyriakopoulos, On Dehn's lemma and the asphericity of knots, Ann. of Math. (2) 66 (1957), 1-26. MR 90053
  • 8. D. L. Sumners, On π2 of S2 in S4 (to appear).


Additional Information

DOI: https://doi.org/10.1090/S0002-9904-1969-12194-4

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