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math-ph2026
Remarks on Regular Approximations to the Robin Aharonov-Bohm Hamiltonian
Cesar R. de Oliveira
In the space , for Robin parameter , it is shown that there is a family of Schrödinger operators with penetrable toroidal solenoid and variable conductivity that…
math-ph2016
A characterization of singular packing subspaces with an application to limit-periodic operators
Silas L. Carvalho, César R. de Oliveira
A new characterization of the singular packing subspaces of general bounded self-adjoint operators is presented, which is used to show that the set of operators whose spectral meas…