Explicit Spectral Decimation for a Class of Self--Similar Fractals
  The method of spectral decimation is applied to an infinite collection of self--similar fractals. The sets considered belong to the class of nested fractals, and are thus very symmetric. An explicit construction is given to obtain formulas for the eigenvalues of the Laplace operator acting on these fractals. 
Sergio A. Hernandez, Federico Menendez-Conde
math.AP