Imaginary numbers are a solution to a very real problem, according to a new study published in Scientific Reports. Two physicists at Argonne National Laboratory offered a way to mathematically ...

THIS tract is an authoritative exposition of problems of radiative equilibrium by one of the original workers in the subject. An initial chapter gives a summary of the general theory and main problem ...

Differential equations are fundamental tools in physics: they are used to describe phenomena ranging from fluid dynamics to general relativity. But when these equations become stiff (i.e. they involve ...