A note on Cauchy's root test

Autor: I. S. Murphy
Rok vydání: 1976
Předmět:
Zdroj: Glasgow Mathematical Journal. 17:151-154
ISSN: 1469-509X
0017-0895
DOI: 10.1017/s0017089500002883
Popis: Throughout this note we deal with a series Σan of positive terms. The following tests for the convergence of this series are well-known.Test 1. (Ratio test). LetThen, if K < 1, Σanconverges, while if K > 1, Σandiverges.Test 2. (Root test). LetThen, if K < 1, Σanconverges, while if K > 1, Σandiverges.
Databáze: OpenAIRE