摘要
In this paper, we present a new characterization of the mappings of bounded length distortion (BLD for short). In the original geometric definition, it is assumed that a BLD mapping is open, discrete, and sense-preserving. We prove that the first two of the three conditions are redundant and the sense-preserving condition can be replaced by a weaker assumption that the Jacobian is nonnegative.
- 出版日期2015