In complex analysis, the '''(open) right half-plane''' is the set of all points in the complex plane whose real part is strictly positive, that is, the set <math display="inline">\{z \in \Complex\, :\, \mbox{Re}(z) > 0\}</math>.

right|thumb|262px|An illustration of the right-half plane.

== References ==

* Rudin, W., ''Real and Complex Analysis, 3 ed.'' (McGraw-Hill, 1986). * Ahlfors, L., ''Complex Analysis, 3 ed.'' (McGraw-Hill, 1979). * Kato, T., ''Perturbation theory for linear operators'', 2 ed. (Springer-Verlag, 1995)

Category:Complex analysis

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