Index spaces and standard indices in metric modelling

Autor: Ezgi Erdoğan, Antonia Ferrer-Sapena, Eduardo Jiménez-Fernández
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Nonlinear Analysis, Vol 27 (2022)
Druh dokumentu: article
ISSN: 1392-5113
2335-8963
DOI: 10.15388/namc.2022.27.27493
Popis: We analyze the basic structure of certain metric models, which are constituted by an index I acting on a metric space (D; d) representing a relevant property of the elements of D. We call such a structure (D; d; I) an index space and define on it normalization and consistency constants that measure to what extent I is compatible with the metric d. The “best” indices are those with such constants equal to 1 (standard indices), and we show an approximation method for other indices using them. With the help of Lipschitz extensions, we show how to apply these tools: a new model for the triage process in the emergency department of a hospital is presented.
Databáze: Directory of Open Access Journals