%0 Journal Article %T Boundedness of Functions on Product Spaces by Sums of Functions on the Factors %A Stefan Born %A Alexander Dirmeier %J Mathematics %D 2013 %I arXiv %X We investigate sufficient conditions for real-valued functions on product spaces to be bounded from above by sums or products of functions which depend only on points in the respective factors. %U http://arxiv.org/abs/1401.0130v1