Entropy as a Topological Operad Derivation

Autor: Tai-Danae Bradley
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Entropy, Vol 23, Iss 9, p 1195 (2021)
Druh dokumentu: article
ISSN: 1099-4300
DOI: 10.3390/e23091195
Popis: We share a small connection between information theory, algebra, and topology—namely, a correspondence between Shannon entropy and derivations of the operad of topological simplices. We begin with a brief review of operads and their representations with topological simplices and the real line as the main example. We then give a general definition for a derivation of an operad in any category with values in an abelian bimodule over the operad. The main result is that Shannon entropy defines a derivation of the operad of topological simplices, and that for every derivation of this operad there exists a point at which it is given by a constant multiple of Shannon entropy. We show this is compatible with, and relies heavily on, a well-known characterization of entropy given by Faddeev in 1956 and a recent variation given by Leinster.
Databáze: Directory of Open Access Journals
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