Ireneo Peral Alonso & Fernando Soria de Diego 
Elliptic and Parabolic Equations Involving the Hardy-Leray Potential [PDF ebook] 

The scientific literature on the Hardy-Leray inequality, also known as the uncertainty principle, is very extensive and scattered. The Hardy-Leray potential shows an extreme spectral behavior and a peculiar influence on diffusion problems, both stationary and evolutionary. In this book, a big part of the scattered knowledge about these different behaviors is collected in a unified and comprehensive presentation.