Source: cirosantilli/time-dependent-boundary-condition
= Time dependent boundary condition
Most commonly, <boundary conditions> such as the <Dirichlet boundary condition> are taken to be fixed values in time.
But it also makes sense to think about cases where those values vary in time.
Some bibliography:
* https://math.stackexchange.com/questions/261251/heat-equation-with-time-dependent-boundary-conditions
* https://secure.math.ubc.ca/~peirce/M257_316_2012_Lecture_20.pdf