Quantum computing with perpetually coupled qubits: on-site localization of excitations. - Mark I. Dykman; L. F. Santos; M. Shapiro; Felix M. Izrailev (Quantum Inf. Comput., 2005)

On the Hilbert operator and the Hilbert formulas on the unit sphere for the time-harmonic Maxwell equations. - M. A. Pérez-de la Rosa; M. Shapiro (Appl. Math. Comput., 2014)