Solving Linear Partial Differential Equations: Spectra

'This booklet provides a very lucid and versatile introduction to the methods of linear partial differential equations. It covers a wealth of very important material in a concise, nevertheless very instructive manner, and as such it may serve as an excellent guide to further, more advanced and detailed reading in this area of both classical and contemporary mathematics.'<div style='text-align: right;'>zbMATH</div>Partial differential equations arise in many branches of science and th