Hello all! I have searched this, but I am still looking for additional input. I am an engineer and I want to self-study PDEs. I looked at Farlow's text and though it is nice from an applications standpoint, I think that it is not 'mathy' enough for me. Don't get me wrong, I am not the best math student by any stretch; all of my background has been in 'engineering maths' not 'math major maths'. But again, I think Farlow is too applications oriented for me, I like a "little rigor." Any thoughts on an intro PDE text that has a 'little bit' of rigor yet is still accessible to the Engineer? Thanks!