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L-S-homotopy classes on the topological image of a projective plane. (English) Zbl 0035.11102


Keywords:

Topology
Full Text: DOI

References:

[1] Heinz Hopf, Über die Drehung der Tangenten und Sehnen ebener Kurven, Compositio Math. 2 (1935), 50 – 62 (German). · Zbl 0011.17702
[2] Hassler Whitney, On regular closed curves in the plane, Compositio Math. 4 (1937), 276 – 284. · Zbl 0016.13804
[3] Marston Morse, \?-\?- homotopy classes of locally simple curves, Ann. Soc. Polon. Math. 21 (1948), 236 – 256 (1949). · Zbl 0036.12901
[4] Marston Morse, Topological Methods in the Theory of Functions of a Complex Variable, Annals of Mathematics Studies, no. 15, Princeton University Press, Princeton, N. J., 1947. · Zbl 0041.39604
[5] Marston Morse and Maurice Heins, Topological methods in the theory of functions of a single complex variable. I. Deformation types of locally simple plane curves, Ann. of Math. (2) 46 (1945), 600 – 624. · Zbl 0063.04118 · doi:10.2307/1969200
[6] Marston Morse and Maurice Heins, Deformation classes of meromorphic functions and their extensions to interior transformations, Acta Math. 79 (1947), 51 – 103. · Zbl 0029.29202 · doi:10.1007/BF02404694
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