Subclasses of multivalent harmonic mappings defined by convolution
In this paper the authors introduce a new subclass of multivalent harmonic functions defined by convolution. Sufficient coefficient conditions are obtained that are also shown to be necessary when the functions have negative coefficients. The results, which are presented in terms of five theorems and three corollaries, are interesting and their proofs seem to be correct.
scientific article; zbMATH DE number 6052954