Iterated convolution inequalities on ${\mathbb{R}}^d$ and Riemannian Symmetric Spaces of non-compact type

Utsav Dewan

In a recent work (Int Math Res Not 24:18604-18612, 2021), Carlen-Jauslin-Lieb-Loss studied the convolution inequality $f\ge f\ast f$ on ${\mathbb{R}}^d$ and proved that the real integra…