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تسجيل مستخدم جديدThe two-sided Pompeiu problem for discrete groups
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We consider a two-sided Pompeiu type problem for a discrete group $G$. We give necessary and sufficient conditions for a finite set $K$ of $G$ to have the $mathcal{F}(G)$-Pompeiu property. Using group von Neumann algebra techniques, we give necessary and sufficient conditions for $G$ to be a $ell^2(G)$-Pompeiu group
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