A plurisubharmonic function is an upper semicontinuous function whose restrictions to all complex lines are subharmonic (where defined). These functions were introduced by P. Lelong and Oka in the early 1940s. Examples of such a function are the logarithms of moduli of holomorphic functions.
Plurisubharmonic Function
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References
Range, R. M. and Anderson, R. W. "Hans-Joachim Bremmermann, 1926-1996." Not. Amer. Math. Soc. 43, 972-976, 1996.Referenced on Wolfram|Alpha
Plurisubharmonic FunctionCite this as:
Weisstein, Eric W. "Plurisubharmonic Function." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/PlurisubharmonicFunction.html