Introduction to PDE's. 3. How to solve PDE a(x,y)u_x+b(x,y)u_y=0, and characteristic curves.

Professor Paweł Nurowski (CTP PAS): Introduction to Partial Differential Equations. Lecture 3: How to solve PDE a(x,y)u_x+b(x,y)u_y=0, and what is the difference between characteristics and characteristic curves?
Guangdong Technion Israel Institute of Technology, Spring semester 2020.

This lecture series has been born out of necessity to deal with the situation created by the coronavirus spread in China, where these lectures were originally planned. Due to the time constraints, the video is published in a 'raw' form, without any editing. We apologize for any inconvenience