[1906] On the invariant subspace problem for Banach spaces

[1907] The spherical Bernstein problem in even dimensions and related problems

[1908] The Riemann-Roch theorem for complex spaces

[1909] Conne’s bicentralizer problem and uniqueness of the injective factor of type III_{1}

[1910] Proof of a conjecture of F. Nevanlinna concerning functions which have deficiency sum two