Abstract
In the present paper we establish several inequalities for strong differential superordinations regarding the extended new operator \( RD_{\lambda ,\alpha }^{m}\) defined by using the extended Sălăgean operator and the extended Ruscheweyh derivative, \(RD_{\lambda ,\alpha }^{m}: \mathscr {A}_{n\zeta }^{\ast }\rightarrow \mathscr {A}_{n\zeta }^{\ast },\) \( RD_{\lambda ,\alpha }^{m}f(z,\zeta )=(1-\alpha )R^{m}f(z,\zeta )+\alpha D_{\lambda }^{m}f(z,\zeta ),\) z ∈ U, \(\zeta \in \overline {U},\) where R mf(z, ζ) denote the extended Ruscheweyh derivative, \(D_{\lambda }^{m}f(z,\zeta )\) is the extended generalized Sălăgean operator, and \( \mathscr {A}_{n\zeta }^{\ast }=\{f\in \mathscr {H}(U\times \overline {U}),\ f(z,\zeta )=z+a_{n+1}\left ( \zeta \right ) z^{n+1}+\dots ,\ z\in U,\) \(\zeta \in \overline {U}\}\) is the class of normalized analytic functions.
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References
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Lupaş, A.A. (2019). Inequalities for Special Strong Differential Superordinations Using a Generalized Sălăgean Operator and Ruscheweyh Derivative. In: Anastassiou, G., Rassias, J. (eds) Frontiers in Functional Equations and Analytic Inequalities. Springer, Cham. https://doi.org/10.1007/978-3-030-28950-8_20
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DOI: https://doi.org/10.1007/978-3-030-28950-8_20
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