Errata to “Isomorphism theorems between models of mixed choice,” fixes and consequences

Abstract The results of Section 3.1 of the 2017 paper “Isomorphism Theorems between Models of Mixed Choice” need an additional assumption when $\bullet$ is “ $1$ .” If $\bullet$ is nothing or “ $\leq 1$ ,” no change is needed. Also, the mistake only applies to the angelic cases, namely to the maps $r_{{\mathtt {A}}{\mathtt {P}}}$ and $s^\bullet _{{\mathtt {A}}{\mathtt {P}}}$ ; the demonic cases $r_{{\mathtt {D}}{\mathtt {P}}}$ and $s^\bullet _{{\mathtt {D}}{\mathtt {P}}}$ are unaffected. If $\bullet$ is “ $1$ ,” and in the angelic cases, instead of just assuming that $\mathcal L X$ is locally convex, we need to additionally assume that $X$ is compact, or that $\mathcal L X$ is locally convex-compact, sober, and topological – for example, if $X$ is core-compact – or that $X$ is LCS-complete, namely, a homeomorph of a $G_\delta$ subspace of a locally compact sober space.

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Publication Details

Journal
Mathematical Structures in Computer Science
Published
2025-01-01
DOI
https://doi.org/10.1017/s0960129525100200
Primary Topic
Economic theories and models
Type
article
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0.00
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article

Errata to “Isomorphism theorems between models of mixed choice,” fixes and consequences

Jean Goubault-Larrecq
Mathematical Structures in Computer Science
Economic theories and models
article

Errata to “Isomorphism theorems between models of mixed choice,” fixes and consequences

Jean Goubault-Larrecq
article en

Abstract

Abstract The results of Section 3.1 of the 2017 paper “Isomorphism Theorems between Models of Mixed Choice” need an additional assumption when $\bullet$ is “ $1$ .” If $\bullet$ is nothing or “ $\leq 1$ ,” no change is needed. Also, the mistake only applies to the angelic cases, namely to the maps $r_{{\mathtt {A}}{\mathtt {P}}}$ and $s^\bullet _{{\mathtt {A}}{\mathtt {P}}}$ ; the demonic cases $r_{{\mathtt {D}}{\mathtt {P}}}$ and $s^\bullet _{{\mathtt {D}}{\mathtt {P}}}$ are unaffected. If $\bullet$ is “ $1$ ,” and in the angelic cases, instead of just assuming that $\mathcal L X$ is locally convex, we need to additionally assume that $X$ is compact, or that $\mathcal L X$ is locally convex-compact, sober, and topological – for example, if $X$ is core-compact – or that $X$ is LCS-complete, namely, a homeomorph of a $G_\delta$ subspace of a locally compact sober space.

Mathematical Structures in Computer ScienceVol. 35
Centre National de la Recherche Scientifique (FR), Université Paris-Saclay (FR), Laboratoire Méthodes Formelles (FR)
Openalex Percentile: Top 65%
Economic theories and models
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