1. E.A.M. Abreu, A.N. Carvalho, Lower semicontinuity of attractors for parabolic problems with Dirichlet boundary conditons in varying domains, Notas do ICMC/USP-S. Mat. # 148, preprint.
2. J.M. Arrieta, Spectral behavior of Schrödinger operators under perturbations of the domain, Ph.D. Thesis, CDSNS School of Mathematics, Georgia Institute of Technology, Atlanta GA, 1991.
3. Neumann eigenvalue problems on exterior perturbations of the domain;Arrieta;J. Differential Equations,1995
4. Rates of eigenvalues on a Dumbbell domain. Simple eigenvalue case;Arrieta;Trans. AMS,1995
5. J.M. Arrieta, Spectral behavior and uppersemicontinuity of attractors, Internat. Conference on Differential Equations (EQUADIFF’99) Berlin, World Scientific, 2000, pp. 615–621.