Variation of the Branch Points for An Analytic Function
نویسندگان
چکیده
منابع مشابه
Jacobians and branch points of real analytic open maps
Introduction The main object of this paper is to prove the following result: Theorem 1 The Jacobian of a real analytic open map f : R → R does not change sign. One of the referees kindly pointed out that the special case of polynomial maps was proved by Gamboa and Ronga [3]: Theorem 2 (Gamboa and Ronga) A polynomial map in R is open if and only if point inverses are finite and the Jacobian does...
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ژورنال
عنوان ژورنال: Transactions of the American Mathematical Society
سال: 1958
ISSN: 0002-9947
DOI: 10.2307/1993187