On countability of the spectrum of Banach space valued weakly almost-periodic functions
On non-zero dimensional atoms
On sets always of the first category
On the existence of G-compactifications
On the existence problem in the algebraic approach to quantum field theory
On the geometrical structure of Lebesgue nullsets
On the singlevaluedness and differentiation of metric projections
On tho existence of weak P-points in compact F-spaces