논문KCI 등재
Starlikeness of multivalent meromorphic harmonic functions
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Abstract
We give sufficient coefficient conditions for starlikeness of aclass of complex-valued multivalent meromorphic harmonic andorientation preserving functions in outside of the unit disc.These coefficient conditions are also shown to be necessary if thecoefficients of the analytic part of the harmonic functions arepositive and the coefficients of the co-analytic part of theharmonic functions are negative. We then determine the extremepoints, distortion bounds, convolution and convex combinationconditions for these functions.
관련 논문AI추천
ON STARLIKENESS AND CLOSE-TO-CONVEXITY OFCERTAIN MEROMORPHIC FUNCTIONSDinggongYang, NengXu한국수학교육학회 · 이론수학과 교직수학2003 · 제10권 제1호Multivalent Harmonic Uniformly Starlike FunctionsNaveneet Sangle, Om Ahuja, Santosh Joshi경북대학교 자연과학대학 수학과 · Kyungpook Mathematical Journal2009 · 제49권 제3호On a Class of Meromorphically p-Valent Starlike FunctionsDinggong Yang, Neng Xu한국수학교육학회 · 이론수학과 교직수학2005 · 제12권 제1호On a Linear Combination of Classes of Multivalently Harmonic FunctionsJAY M. JAHANGIRI, OM P. AHUJA경북대학교 자연과학대학 수학과 · Kyungpook Mathematical Journal2002 · 제42권 제1호On a subclass of certain convex harmonic functionsMet\.in \, S\.{i}bel Yal\c{c}in대한수학회 · 대한수학회지2006 · 제43권 제4호Sufficient conditions for starlikeness and strongly-starlikeness권오상대한수학회 · 대한수학회논문집2007 · 제22권 제1호
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