We obtain some subordination and superordination results involving a new operator. By means of the new introduced operator \( \mathrm{C}_{p,n}^{\lambda }(a,c)f(z), \) for some multivalent functions in the open unit disc, we establish the differential sandwich theorem.
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Published in Ukrains’kyi Matematychnyi Zhurnal, Vol. 65, No. 11, pp. 1580–1584, November, 2013.
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He, P., Zhang, D. Some Properties of Multivalent Functions Associated with a Certain Operator. Ukr Math J 65, 1749–1754 (2014). https://doi.org/10.1007/s11253-014-0894-y
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DOI: https://doi.org/10.1007/s11253-014-0894-y