Let D be a bounded domain in R2 and c (≥ 1) be a constant. We say that D is a c-Johndomain if there exists x0 ∈ D such......

作为John域的推广,本文定义了弱John域,并讨论了弱John域与拟圆、弱John域与拟共形映射之间的关系,得到(1)若R2中的Jordan域D和它......