= Olof Sisask
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<Olof Sisask> co-developed the <Croot-Sisask almost-periodicity theorem> with <Ernie Croot>, introducing a probabilistic method for finding almost-periods of <convolutions> in <additive combinatorics>.<A probabilistic technique for finding almost-periods of convolutions by Ernie Croot and Olof Sisask>[Original byline and abstract]{ref}
Their proof approximates a convolution by sampling and then looks for translations preserving the approximation. Norm estimates turn that probabilistic approximation into many approximate symmetries. The method provides a way to detect additive structure without requiring exact periodicity.<A probabilistic technique for finding almost-periods of convolutions by Ernie Croot and Olof Sisask>[Section 3, sampling proof]{ref}
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