Best Approximation and K-Functionals
On Some New Sequence Spaces of Invariant Means
Interpolation on the Complex Hilbert Sphere Using Positive Definite and Conditionally Negative Definite Kernels
On the Order of Magnitude of Fourier Transforms
A Note on the Decomposition of Continuity
On the Convergence of the Ishikawa Iterates to a Common Fixed Point for a Pair of Multi-Valued Mappings
Strong β-Sets and Another Decomposition of Continuity
On Right K-Sequentially Complete Quasi-Metric Spaces