Browsing by Author "Ganiyu, M. A."

Now showing 1 - 6 of 6
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    Bounds on coefficients of certain analytic functions
    (Faculty of Science, University of Ilorin, Ilorin, Nigeria, 2013) Jimoh, F. M.; Ganiyu, M. A.; Ejieji, C. N.; Babalola, Kunle Oladeji
    In this paper, we obtain bounds on some early coefficients of analytic functions which have the form f(z)=z+a_2 z^2+⋯ and which satisfy certain geometric conditionsin the open unit disk E={z∈ C:|z|<1}
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    Bounds on coefficients of certain analytic functions
    (Faculty of Science, University of Ilorin, Ilorin, Nigeria, 2013) Jimoh, F. M.; Ganiyu, M. A.; Ejieji, C. N.; Babalola, Kunle Oladeji
    In this paper we obtain bounds on some early coefficients of analytic functions which have the form f(z)=z+a_2z^2+...and satisfy certain geometric conditions in the unit disk E = {z: |z|<1}.
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    Coefficient estimates for certain classes of analytic functions
    (Nigerian Mathematical Society, 2014) Ganiyu, M. A.; Jimoh, F. M.; Ejieji, C. N.; Babalola, Kunle Oladeji
    Bounds on early coefficients of analytic functions normalized by f(0)=f^'(0)-1=0 which satisfy Re (〖f(z)〗^(α-1) f^' (z))/z^(α-1) (1+(zf^'' (z))/(f^' (z) ))>0 in the unit disk U ={z∈ C:|z|<1} are obtained using known properties of functions with positive real part
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    On coefficient determinants involving many Fekete-Szego-type parameters of convex functions
    (Department of Mathematics and Informatics, "1 Decembrie 1918" University of Alba Iulia, Romania, 2016) Ganiyu, M. A.; Babalola, Kunle Oladeji
    We examine the Hankel determinants involving many Fekete-Szego-type parameters for the class of convex functions of analytic mappings of the unit disk U={z∈ C:|z|<1} which satisfy the condition Re [1+(zf^'' (z))/(f^' (z) )]>0, z∈U
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    Some Hankel Determinants for Functions satisfying Re f(z)/z > 0
    (Mathematical Association of Nigeria, 2015) Ganiyu, M. A.; Babalola, Kunle Oladeji
    We obtain sharp bounds on some Hankel determinants with Fekete-Szego parameter for analytic mappings of the unit disk U : jzj < 1 satisfying Re f(z)=z > 0 in U. Our results extend some known ones.
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    Third Hankel determinant for a certain subclass of analytic functions
    (University Press, Singapore, 2016) Ganiyu, M. A.; Babalola, Kunle Oladeji
    The third Hankel determinant H_3 (1) for subclass of analytic functions satisfying geometric condition Re (zf^' (z))/(f(z)) (〖f(z)〗^(α-1) f^' (z))/z^(α-1) >0 for nonnegative real number α in the open unit disk U={z∈ C:|z|<1} is derived in line with a method of classical analysis devised by Libera and Zlotkiewicz