The Properties of Differential-Difference Polynomials
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DOI: 10.1007/s11253-017-1348-0
Abstract: The main aim of the paper is to improve some classical results on the distribution of zeros for differential polynomials and differential-difference polynomials. We present some results on the distribution of zeros of [f(z)nf(z + c)](k) − α(z) and… read more here.
Keywords: properties differential; difference polynomials; differential difference;
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