Properties of a Class of -Harmonic Functions
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A times continuously differentiable complex-valued function in a domain is -harmonic if satisfies the -harmonic equation , where is a positive integer. By using the generalized Salagean differential operator, we introduce a class of -harmonic functions and investigate necessary and sufficient coefficient conditions, distortion bounds, extreme points, and convex combination of the class.
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2021 ◽
Vol 26
(4)
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pp. 491-500
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2010 ◽
Vol 41
(3)
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pp. 261-269
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