Cauchy-Riemann: Is the Relation ∂x/∂y = -∂y/∂x True in General?

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The discussion centers on the validity of the relation ∂x/∂y = -∂y/∂x in the context of complex analysis and its extension to general two-dimensional planes. The participants confirm that for the function f(z) = z, which is analytic, the Cauchy-Riemann equations yield ∂u/∂x = ∂v/∂y = 1 and ∂u/∂y = -∂v/∂x, supporting the relation under specific conditions. The inquiry extends to whether this relationship holds universally in two-dimensional spaces, with a consensus that it does apply in such contexts.

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sahil_time
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Considering f(z) = z where z is analytic. z = x + iy.
f(z) = u + iv = x + iy.
Hence u=x and v=y.
Using Cauchy Reimann eqns.
∂u/∂x = ∂v/∂y =1 and
∂u/∂y = -∂v/∂x where u=x and v=y hence

∂x/∂y = -∂y/∂x

is this relation true in general?
 
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I'm assuming you mean z is some function z(w) of another complex number w. So Yes, since f(z) = z = z(w) is just the identity function.
 
osnarf said:
I'm assuming you mean z is some function z(w) of another complex number w. So Yes, since f(z) = z = z(w) is just the identity function.

I meant to ask whether the relation is true in general and not just complex numbers.

eg: dy/dx = 1/(dx/dy) for 2 Dimensional plane. Just that way is ∂x/∂y = -∂y/∂x
true for any 2 Dimensional plane?


Thankyou. :)
 

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