An elementary proof of invariance of domain and its consequences

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Authors: Yiyou Wu
Cited by: 0

Abstract

Let be a open subset of a Euclidean space R. Then, given any continuous injective mapping from to R, the image () is also open in R. The above is the statement of the invariance of domain theorem for Euclidean space; In this thesis, we present an elementary proof of the theorem that does not involve tools from algebraic topology and introduce an important consequence of the theorem: Euclidean spaces of different dimensions are not homeomorphic.

Fields of Study & Subjects

Geometric and Algebraic Topology Advanced Topology and Set Theory Advanced Banach Space Theory

Publication details

Journal / source
Aaltodoc (Aalto University)
Publication date
24 February 2026
Language
EN
Document type
Thesis