Higher-dimensional substitution systems exhibit spectral pollution under periodic approximations, altering essential spectrum and Lebesgue measure in contrast to the one-dimensional case.
Spectral and quantum dynamical properties of the weakly coupled Fibonacci Hamiltonian
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Spectral pollution in substitution systems
Higher-dimensional substitution systems exhibit spectral pollution under periodic approximations, altering essential spectrum and Lebesgue measure in contrast to the one-dimensional case.