Explore Books on
partial differential equations -- instructional exposition (textbooks tutorial papers etc.)

Mathematical methods of electromagnetic theory

By K. O. Friedrichs

Elliptic Partial Differential Equations: Second Edition (Courant Lecture Notes)

By Qing Han,Fanghua Lin

A basic course in partial differential equations

By Qing Han

Partial differential equations

By András Vasy

Lecture notes on functional analysis with applications to linear partial differential equations

By Alberto Bressan