“…In [40], Sawyer studied the weighted theory of onesided maximal Hardy-Littlewood operators in depth for the first time. Since then, numerous papers have appeared, among which we choose to refer to [2], [3], [11], [24], [25] and [37] about one-sided operators, [1], [10], [30], [34], [35], and [38] about one-sided spaces, respectively. Interestingly, lots of results show that for a class of smaller operators (one-sided operators) and a class of wider weights (one-sided weights), many famous results in harmonic analysis still hold.…”