PlanetMath (more info)
 Math for the people, by the people. Sponsor PlanetMath
Encyclopedia | Requests | Forums | Docs | Wiki | Random | RSS  
Login
create new user
name:
pass:
forget your password?
Main Menu
Revision difference : Dirichlet problem
Version current Version 3
Suppose $\Omega$ is a domain of $\sR^n$ and $\partial\Omega$ is the boundary of $\Omega$. Suppose $\Omega$ is a domain of $\sR^n$ and $\partial\Omega$ is the boundary of $\Omega$.
Further suppose $f$ is a function $f\colon\partial \Omega\to\sC$. Then the Further suppose $f$ is a function $f\colon\partial \Omega\to\sC$. Then the
\emph{Dirichlet problem} is to find a function $\phi\colon \Omega\cup \partial \Omega \to\sC$ \emph{Dirichlet problem} is to find a function $\phi\colon \Omega\cup \partial \Omega \to\sC$
such that such that
\begin{eqnarray*} \begin{eqnarray*}
\phi &=& f,\quad \text{on $\partial \Omega$}, \\ \phi &=& f,\quad \text{on $\partial \Omega$}, \\
\nabla^2 \phi &=& 0,\quad \text{in $\Omega$}. \nabla^2 \phi &=& 0,\quad \text{in $\Omega$},
\end{eqnarray*} \end{eqnarray*}