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Some examples of vector fields on the 3-sphere. (English) Zbl 0195.25403


MSC:

57R25 Vector fields, frame fields in differential topology
57T99 Homology and homotopy of topological groups and related structures

Keywords:

topology

References:

[1] [1] , Uber die abbildungen von sphären auf sphären neidrigerer dimension. Fund. Math., 25 (1935), 427-440. · JFM 61.0622.04
[2] [2] and , Qualitative Theory of Differential Equations. Princeton, 1963. · Zbl 0089.29502
[3] Invariant sets under iteration of rational functions, Ark. Mat, 6 · Zbl 0127.03401
[4] [4] , The Topology of Fiber Bundles. Princeton, 1951. · Zbl 0054.07103
[5] [5] , Smoothing derivatives of functions and applications, Trans. A.M.S. 139 (1969), 413-428. · Zbl 0175.20203
[6] [6] , The structure of the level surfaces of a Lyapunov function, J. Diff. Eq. 3 (1967), 323-329. · Zbl 0152.28701
[7] Equations defining toric varieties, Algebraic Geometry (Santa Cruz, 1995) · Zbl 0209.39503
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