ON STABLE SOLUTIONS OF BOUNDARY REACTION-DIFFUSION EQUATIONS AND APPLICATIONS TO NONLOCAL PROBLEMS WITH NEUMANN DATA Serena DipierroNicola SoaveNicola SoaveEnrico Valdinoci Indiana University Mathematics Journal 2018 text pdf 10.1512/iumj.2018.67.6282 10.1512/iumj.2018.67.6282 en Indiana Univ. Math. J. 67 (2018) 429 - 469 state-of-the-art mathematics http://iumj.org/access/