Subharmonic function: Difference between revisions

Revision as of 15:01, 28 January 2014

Revision as of 15:02, 28 January 2014

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Note that by the above, the function which is identically −∞ is subharmonic, but some authors exclude this function by definition.

A function $<math>u$</math> is called ''superharmonic'' if $<math>-u$</math> is subharmonic.

==Properties==