Set theory, the mathematical study of collections of objects, forms a foundation for much of modern mathematics, while cardinal functions provide a means to quantify the sizes of these sets, ...

Hardy spaces, originally devised to characterise the boundary behaviour of holomorphic functions, have evolved into a comprehensive framework within real-variable harmonic analysis. Their study has ...

Set theory is a mathematical abstract concerned with the grouping of sets of numbers that have commonality. For example, all even numbers make up a set, and all odd numbers comprise a set. All numbers ...