Mathematicians are still trying to understand fundamental properties of the Fourier transform, one of their most ubiquitous and powerful tools. A new result marks an exciting advance toward that goal.

Recent developments in nonlinear optics have led to the discovery of a new class of ultrashort pulse, the ‘optical similariton’. Optical similaritons arise when the interaction of nonlinearity, ...

The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations for ...