The irrationality of certain infinite series

C. Badea
1987 Glasgow Mathematical Journal  
The aim of this paper is to prove the irrationality of a certain class of infinite series. The main theorem is related to some results due to Erdos and Straus [7], Erdos [5] and S6ndor [15] . As applications of the main result, the solutions of two problems posed by Erdos and Graham [6] are given, among others.
doi:10.1017/s0017089500006868 fatcat:payhy5ohjnegbn7th4rszs4sya