How do I:

Prove that if u and v are harmonic in a domain D, then (du/dy - dv/dx) + i(du/dx + dv/dy) is analytic in D.

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- Dec 7th 2008, 06:41 PMrrp4harmonic functions
How do I:

Prove that if u and v are harmonic in a domain D, then (du/dy - dv/dx) + i(du/dx + dv/dy) is analytic in D.

- Dec 7th 2008, 07:32 PMTwistedOne151
A complex function is analytic if it obeys the Cauchy-Riemann equations. Apply those to the complex function you want to prove is analytic, and use the fact that and , as the functions are harmonic.

--Kevin.