funk_master81
New Member
- Joined
- Oct 1, 2004
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- HSC
- 2005
can anyone explain this?
The problem of finding the connection between a continuous function f on the boundary of a region R with a harmonic function taking on the value f on . In general, the problem asks if such a solution exists and, if so, if it is unique. The Dirichlet problem is extremely important in mathematical physics (Courant and Hilbert 1989, pp.*179-180 and 240; Logan 1997; Krantz 1999b).
If f is a continuous function on the boundary of the open unit disk , then define
where is the boundary of . Then u is continuous on the closed unit disk and harmonic on (Krantz 1999a, p.*93).