A counterexample against the Lesche stability of a generic entropy functional

Autor: Kaabouchi, Aziz El, Wang, Qiuping A., Ou, C. J., Chen, Jincan, Su, Guozhen, Méhauté, Alain Le
Rok vydání: 2009
Předmět:
Zdroj: Journal of Mathematical Physics 52(2011)063302
Druh dokumentu: Working Paper
DOI: 10.1063/1.3589845
Popis: We provide a counterexample to show that the generic form of entropy S(p)=sum_i g(p_i) is not always stable against small variation of probability distribution (Lesche stability) even if is concave function on [0,1] and analytic on ]0,1]. Our conclusion is that the stability of such a generic functional needs more hypotheses on the property of the function g, or in other words, the stability of entropy cannot be discussed at this formal stage.
Databáze: arXiv