Electronic Journal of Differential Equations, Vol. 2004(2004), No. 114, pp. 1-21 Title: Generic simplicity of eigenvalues for a Dirichlet problem of the bilaplacian operator Author: Marcone C. Pereira (Univ. de Sao Paulo, Brazil) Abstract: In this work we show that the eigenvalues of the Dirichlet problem for the Bilaplacian are generically simple in the set of $C^4$-regular regions. Submitted April 8, 2004. Published September 29, 2004. Math Subject Classifications: 35B20, 35J40, 58D19. Key Words: Generic properties; perturbation of the boundary; bilaplacian.