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math.SP2013
Characterization of potential smoothness and Riesz basis property of Hill-Scrödinger operators with singular periodic potentials in terms of periodic, antiperiodic and Neumann spectra
Ahmet Batal
The Hill operators Ly=-y''+v(x)y, considered with singular complex valued π-periodic potentials v of the form v=Q' with Q in L^2([0,π]), and subject to periodic, antiperiodic or Ne…
math.SP2012
Characterization of potential smoothness and Riesz basis property of the Hill-Scrödinger operator in terms of periodic, antiperiodic and Neumann spectra
Ahmet Batal
The Hill operators , considered with complex valued -periodic potentials and subject to periodic, antiperiodic or Neumann boundary conditions have discrete spe…