Preserver Problems Related to Quasi-Arithmetic Means of Invertible Positive Operators
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DOI: 10.1007/s00020-018-2426-x
Abstract: In this paper we mainly discuss different preserver problems on the cone of positive definite matrices which are related to certain quasi-arithmetic means. read more here.
Keywords: quasi arithmetic; related quasi; preserver problems; arithmetic means ... See more keywords
On Subclasses of Bi-Univalent Functions Related to Quasi Subordination
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DOI: 10.34198/ejms.6221.427438
Abstract: In this paper, we introduce and investigate two subclasses M_Σ^q (λ,γ,h) and H_Σ^q (η,δ,h) of bi-univalent functions defined by quasi-subordination. We find estimates on the Taylor-Maclaurin coefficients |a_2 | and |a_3 | for functions in… read more here.
Keywords: quasi subordination; univalent functions; related quasi; subclasses univalent ... See more keywords