Bobylev, N. A. On an approximate method of defining a rotation for some classes of continuous vector fields. (Russian) Zbl 0449.47061 Kach. Priblizh. Metody Issled. Oper. Uravn. 2, 25-31 (1977). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 47H10 Fixed-point theorems 55M25 Degree, winding number 58C30 Fixed-point theorems on manifolds Keywords:vector fields; approximation rotation PDFBibTeX XML