Representing images in ways other than pixels allows for powerful processing. This subject, based on signal processing, requires a mathematical fluency to understand the concepts fully. Many software ...

Prolate spheroidal wave functions (PSWFs) and their discrete counterparts – the discrete prolate spheroidal sequences (DPSSs) – have emerged as essential tools in the analysis of band‐limited ...

In this note, we observe that the dimension function associated with a wavelet system is the trace of the Gramian fibers of the shift-invariant system generated by the negative dilations of the mother ...

At this point we have the necessary framework to combine all these concepts together into the wavelet energy absorption (WEA) method. At this point we have the necessary framework to combine all these ...

The first direct visualization of quantum dots in bilayer graphene shows the shape of the quantum wave function of the trapped electrons. (Image credit: Zhehao Ge, Frederic Joucken, and Jairo Velasco ...