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Die Nullwegegruppe und ihre Verallgemeinerungen. (German) Zbl 0053.12703

Keywords:

topology
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References:

[1] P. Alexandroff und H. Hopf. [1] Topologie I (Berlin 1935). · Zbl 0013.07904
[2] S. Eilenberg [2] On the relation between the fundamental group of a space and the higher homotopy groups , Fundamenta Math. 32 (1939), 167-175. · Zbl 0021.16204
[3] H. Hopf [3] Fundamentalgruppe und zweite Bettische Gruppe , Comm. Math. Helv. 14 (1942), 257-309. - Nachtrag hierzu , ibidem 15 (1942), 27-32. [4] Über die Bettischen Gruppen, die zu einer beliebigen Gruppe gehören , Comm. Math. Helv. 17 (1944), 39-79. [5] Beiträge zur Homotopietheorie , Comm. Math. Helv. 17 (1944), 307-326. · Zbl 0027.09503 · doi:10.1007/BF02565622
[4] W. Hurewicz [6] Beiträge zur Topologie der Deformationen , Proc. Akad.Amsterdam: (I) 38 (1935), 112-119; (II) 38 (1935), 521-528; (III)39 (1936), 117-126; (IV) 39 (1936), 215-224. · Zbl 0010.37801
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