Despite of the fact that the Damped Wave and the Heat equations describe phenomena of distinct nature, it is amazing that their solutions are related in the limit as $t \to \infty$. The aim of this note is to explain to undergraduate students, with a good calculus background, how the relation between these solutions is established. We follow a ``do it yourself'' strategy and the students are invited to do the suggested exercises in order to understand the content of this note.

Categories: math.HO math.AP

The Diffusive Behavior of Solutions to the Linear Damped Wave Equation: an Undergraduate D.I.Y. Classnote