摘要
In the following, D will denote a finite connected domain in （?） of hyperbolic type; F（D） is the family of f which is analytic and f’≠0 in D; M is the family of M（?）bius transformations. If f∈F（D）, we set Tf（z）=f'（z）/f’（z）; ||Tf||D=sup[Tf（z）|ρD-1（z）, where ρD（z） is the hyperbolic metric of D. Let σ（D）={a:z∈D f∈F（D） and ||Tf||D<a（?）f is univalent in D}; τ（D）={a:f∈F（D）, φ∈M and ||Tf—Tφ||D<a（?）f is univalent in D}. Finally, D is said to be a domain
