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Some general coefficient estimates for a new class of analytic and bi-univalent functions defined by a linear combination

Some general coefficient estimates for a new class of analytic and bi-univalent functions defined by a linear combination

In the present paper, we introduce and investigate a new class of analytic and bi-univalent functions f (z) in the open unit disk U. For this purpose, we make use of a linear combination of the following three functions: f(z)/z, f'(z) and z f''(z) for a function belonging to the …