The main question considered in this paper concerns constructing the mapping ofconstant odd multiplicity in and onto an open ball of Euclidean space, provided that on theboundary of the ball the mapping is a homeomorphism.
(PDF) On Mappings of Constant Multiplicity. Available from: https://www.researchgate.net/publication/315831264_On_Mappings_of_Constant_Multiplicity#fullTextFileContent [accessed Apr 29 2026].
