释义 |
Rouché's TheoremGiven two functions and Analytic in with a simple loopHomotopic to a point in , if for all on , then and have the same number of Roots inside . References
Szegö, G. Orthogonal Polynomials, 4th ed. Providence, RI: Amer. Math. Soc., p. 22, 1975.
|