Functional analysis provides the theoretical foundation for understanding spaces of functions and the linear mappings between them. Central to this discipline are Banach spaces: complete normed vector ...

Yosra Barkaoui’s doctoral dissertation in mathematics at the University of Vaasa, Finland, has successfully generalised a fundamental theorem that has been limited to the bounded case. The research ...

Harmonic analysis is a broad field central to understanding the representation of functions through basic waves and their associated transformations, with profound connections to Fourier analysis, ...