Perturbation of domains and Green kernels of heat equations
Shin Ozawa · Proceedings of the Japan Academy Series A Mathematical Sciences · 1978
1. Introduction.Let 9 be a bounded domain in R with C boundary r.Let p(x) be a C function on r and ,x be the exterior unit normal vector at x e r.For sufficiently small 0, let /2 be the bounded domain whose boundary r is.