Subordination and superordination preserving properties for families of integral operators for meromorphic functions
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DOI: 10.1007/s13324-020-00354-7
Abstract: In this paper we obtain subordination, superordination, and sandwich-type results related to certain family of integral operators defined on the space of meromorphic functions in the open unit disk. Also, an application of the subordination… read more here.
Keywords: subordination superordination; superordination; meromorphic functions; superordination preserving ... See more keywords
Properties of Differential Subordination and Superordination for Multivalent Functions Associated with the Convolution Operators
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DOI: 10.3390/axioms12020169
Abstract: Using convolution (or Hadamard product), we define the El-Ashwah and Drbuk linear operator, which is a multivalent function in the unit disk U=w:w read more here.
Keywords: subordination superordination; properties differential; differential subordination; subordination ... See more keywords
New Results on Higher-Order Differential Subordination and Superordination for Univalent Analytic Functions Using a New Operator
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DOI: 10.3390/sym14081576
Abstract: We present several new results for higher-order (fourth-order) differential subordination and superordination in this paper by using the new operator Hα,β,𝛿,𝜉,γ,nf(v) and offer numerous new findings for fourth-order differential subordination and superordination The innovative discoveries… read more here.
Keywords: order differential; order; differential subordination; subordination superordination ... See more keywords