Parameter-uniform Robin uniqueness on large dilations

Sophie Sun, Xuanrui Zhang

Berestycki and Graham proved large-dilation uniqueness for bounded positive solutions of \[ -Δu=f(u)\quad\hbox{in }κΩ, \qquad u+α\partial_νu=0\quad\hbox{on }\partial(κΩ),\] when $α…