Let X be a weakly $Lindel\ddot{o}f$ determined Banach space. We prove that if X is non-separable, then there exist a complete probability space (Ω, Σ, μ) and a ...

Statistical Approximation Theory and Operators is a vibrant area within applied mathematics that investigates how diverse families of operators can be utilised to ...

Proceedings of the American Mathematical Society, Vol. 89, No. 1 (Sep., 1983), pp. 145-146 (2 pages) We show that it is consistent that the family of Borel maps of class 2 differs from the family of ...