Minimum overlap problem of estimating the minimum possible maximum number of times a number appears in the termwise difference of two…
Minimum overlap problem of estimating the minimum possible maximum number of times a number appears in the termwise difference of two equally large sets partitioning the set \{1, \ldots, 2n\}
Open the “Additive number theory” section on Wikipedia →
Source: List of unsolved problems in mathematics (CC BY-SA 4.0)