Almost periodic functions serve as a powerful conceptual framework in analysing differential equations whose coefficients or forcing terms exhibit recurrent behaviour over time. Rooted in the ...

Some of the series we have looked at have had clear annual cycles, returning to high levels in the same month every year. In our analysis of such processes we have tried to model the mean as a ...

The Collatz conjecture is an open problem involving the 3x + 1 function. The function belongs to a class of generalized 3x + 1 functions of relatively prime type. This paper focuses on exploring ...