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Integral Operators Preserving Subordination and Superordination for Multivalent Functions

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Ukrainian Mathematical Journal Aims and scope

We obtain subordination, superordination and sandwich-preserving new theorems for certain integral operators defined on multivalent functions. The sandwich-type theorem for these integral operators is also derived. Moreover, our results extend some earlier results. Combining these new theorems with some previous related results, we give interesting subordination and superordination consequences for a wide class of analytic integral operators.

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Author information

Authors and Affiliations

  1. Department of Mathematics, Mansoura University, Mansoura, Egypt

    M. K. Aouf

  2. Babeş-Bolyai University, Cluj-Napoca, Romania

    T. Bulboacă

  3. Department of Mathematics, Fayoum University, Fayoum, Egypt and Jamoum University College, Umm Al-Qura University, Makkah, Saudi Arabia

    T. M. Seoudy

Authors
  1. M. K. Aouf
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  2. T. Bulboacă
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  3. T. M. Seoudy
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Corresponding author

Correspondence to T. M. Seoudy.

Additional information

Published in Ukrains’kyi Matematychnyi Zhurnal, Vol. 73, No. 6, pp. 749–762, June, 2021. Ukrainian DOI: 10.37863/umzh.v73i6.437.

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Aouf, M.K., Bulboacă, T. & Seoudy, T.M. Integral Operators Preserving Subordination and Superordination for Multivalent Functions. Ukr Math J 73, 872–887 (2021). https://doi.org/10.1007/s11253-021-01965-4

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  • DOI: https://doi.org/10.1007/s11253-021-01965-4

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