On Multivalent Functions with Negative and Missing Coefficients
Received:September 02, 1988  
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Author NameAffiliation
S.M.Sarangi Dept. Math.
Karnatak University
Dharwad-580 003
INDIA 
Vijaya J.Patil Dept. Math.
Karnatak University
Dharwad-580 003
INDIA 
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Abstract:
      Let Pk(p, A, B) be the class of functions (?) k ≥2 analytic in the unit disc E={z:|z|<1} and satisfying the condition |(zf′(z)/f(z)-p)/(Ap-Bzf(z)/f(z))|<1. for z∈E and -1≤Bk(p, A, B) under the assumption - 1 ≤B< 0 .
Citation:
DOI:10.3770/j.issn:1000-341X.1990.03.006
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