Metaharmonic functions: Mean flux theorem, its converse and related properties
نویسندگان
چکیده
The mean flux theorems are proved for solutions of the Helmholtz equation and its modified version. Also, their converses considered along with some other properties which generalize those that guarantee harmonicity.
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ژورنال
عنوان ژورنال: St Petersburg Mathematical Journal
سال: 2022
ISSN: ['1061-0022', '1547-7371']
DOI: https://doi.org/10.1090/spmj/1699