publication venue for Reducing subspaces for rank-one perturbations of normal operators. 153:1391-1423. 2023 Optimal rearrangement invariant range for Hardy-type operators. 146:865-893. 2016 A concave-convex elliptic problem involving the fractional Laplacian. 1:39-71. 2013 Critical exponents for a semilinear parabolic equation with variable reaction. 142:1027-1042. 2012