Stockholm university
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Partial Differential Equations

A partial differential equation is an equation involving partial derivatives of a function of several variables. In this course, we study the classical partial differential equations; the wave equation, the Laplace equation and the heat equation.

The course covers:

  • Introduction to first order equations.
  • The wave equation: equations in one or several space coordinates, Huygens’ principle.
  • The Laplace equation: fundamental solutions, Green's function, Dirichlet problem, the maximum principle, Dirichlet's principle, introduction to Sobolev spaces.
  • The heat equation: initial value problem, fundamental solutions, the maximum principle.