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On quasinearly subharmonic functions


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Abstract

We recall the definition of quasinearly subharmonic functions, point out that this function class includes, among others, subharmonic functions, quasisubharmonic functions, nearly subharmonic functions and essentially almost subharmonic functions. It is shown that the sum of two quasinearly subharmonic functions may not be quasinearly subharmonic. Moreover, we characterize the harmonicity via quasinearly subharmonicity.

About the authors

O. Dovgoshey

Institute of Applied Mathematics and Mechanics of the NASU

Author for correspondence.
Email: aleksdov@mail.ru
Ukraine, ul. Dobrovol’skogo 1, Sloviansk, 84100

J. Riihentaus

Department of Mathematical Sciences; Department of Physics and Mathematics

Email: aleksdov@mail.ru
Finland, Oulun Yliopisto, FI—90014; Joensuu, FI—80101

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