[716] The spectrum of difference operators and algebraic curves

[717] Discrete one-dimensional quasi-periodic Schrödinger operators with pure point spectrum

[718] A new proof of a Paley—Wiener type theorem for the Jacobi transform

[719] Three-dimensional subsonic flows, and asymptotic estimates for elliptic partial differential equations

[720] Removable sets of analytic functions satisfying a Lipschitz condition