Analytic functions, also known as holomorphic functions, form the cornerstone of complex analysis, widely studied for their elegant properties and deep connections in both pure and applied ...

Abstract.By investigating appropriate classes of admissible functions, various Differential subordination and superordination results for analytic functions in the open unit disk are obtained using ...

XIAODAN ZHAO, LI-LIAN WANG, ZIQING XIE, SHARP ERROR BOUNDS FOR JACOBI EXPANSIONS AND GEGENBAUER-GAUSS QUADRATURE OF ANALYTIC FUNCTIONS, SIAM Journal on Numerical Analysis, Vol. 51, No. 3 (2013), pp.