On preserving the limit points of corresponding objects

Autor: Oleg I. Klesov, Josef Steinebach
Rok vydání: 2020
Předmět:
Zdroj: Journal of Mathematical Analysis and Applications. 486:123916
ISSN: 0022-247X
Popis: Suppose that, for two given sequences { a n } and { b n } , lim inf n → ∞ b n a n = 1 and let a function f be given. What can then be said about the limit behavior of the corresponding ratio f ( b n ) f ( a n ) as n → ∞ ? In general, no definite answer can be given to this question. We study a case where a definite answer is possible, namely the case of a regularly varying function f of nonzero order.
Databáze: OpenAIRE