Existence of continuous euclidean embeddings for a weak class of orders

Lawrence Carr

Papers from arXiv.org

Abstract: We prove that if $X$ is a topological space that admits Debreu's classical utility theorem (eg.\ $X$ is separable and connected, second countable, etc.), then order relations on $X$ satisfying milder completeness conditions can be continuously embedded in $\mathbb R^I$ for $I$ some index set. In the particular case where $X$ is a compact metric space, this closes a conjecture of Nishimura \& Ok (2015). We also show that when $\mathbb R^I$ is given a non-standard partial order coinciding with Pareto improvement, the analogous embedding theorem fails to hold in the continuous case.

Date: 2015-08, Revised 2021-01
New Economics Papers: this item is included in nep-mic and nep-upt
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