The upper half-plane is the portion of the complex plane satisfying i.e., . Common notations include , , , and (Borwein and Borwein 1987, pp. 112 and 398).
The notation or is sometimes used to denote (Borwein and Borwein 1987, pp. 112 and 398).
The upper half-plane is the portion of the complex plane satisfying i.e., . Common notations include , , , and (Borwein and Borwein 1987, pp. 112 and 398).
The notation or is sometimes used to denote (Borwein and Borwein 1987, pp. 112 and 398).
Weisstein, Eric W. "Upper Half-Plane." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/UpperHalf-Plane.html