Abstract
If u (x, y) is a solution of a differential equation of the form Δu=P, where P is a function of x, y, u, ux, ... etc., then u is subharmonic in every domain G in which P is ≧ 0 (see 3.2). For various inferences from this remark see Brelot ([1], pp. 52–55).
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© 1971 Springer-Verlag New York Heidelberg Berlin
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Radó, T. (1971). Examples of subharmonic functions. In: On the Problem of Plateau / Subharmonic Functions. Ergebnisse der Mathematik und Ihrer Grenƶgebiete, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-65236-3_11
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DOI: https://doi.org/10.1007/978-3-642-65236-3_11
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