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Complex Analysis: Theory and Applications · Problem 10.2.8
Applications of Harmonic Functions — Howell & Matthews
Mathematics — Complex Analysis · dirichlet-problem-unit-disk
Problem Find the function ϕ ( x , y ) \phi(x,y) ϕ ( x , y ) that is harmonic in the unit disk ∣ z ∣ < 1 |z| < 1 ∣ z ∣ < 1 and has the boundary values
ϕ ( x , y ) = 8 for x + i y = z = e i θ , 0 < θ < π ; \phi(x,y) = 8 \text{ for } x + iy = z = e^{i\theta},\; 0 < \theta < \pi; ϕ ( x , y ) = 8 for x + i y = z = e i θ , 0 < θ < π ;
ϕ ( x , y ) = 4 for x + i y = z = e i θ , π < θ < 2 π . \phi(x,y) = 4 \text{ for } x + iy = z = e^{i\theta},\; \pi < \theta < 2\pi. ϕ ( x , y ) = 4 for x + i y = z = e i θ , π < θ < 2 π .
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