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Monogenic Function

If

\begin{displaymath}
\lim_{z\to z_0} {f(z)-f(z_0)\over z-z_0}
\end{displaymath}

is the same for all paths in the Complex Plane, then $f(z)$ is said to be monogenic at $z_0$. Monogenic therefore essentially means having a single Derivative at a point. Functions are either monogenic or have infinitely many Derivatives (in which case they are called Polygenic); intermediate cases are not possible.

See also Polygenic Function


References

Newman, J. R. The World of Mathematics, Vol. 3. New York: Simon & Schuster, p. 2003, 1956.




© 1996-9 Eric W. Weisstein
1999-05-26