eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences March 2018 30 3 164 171 http://dx.doi.org/10.22147/jusps-A/300301 1457 article GAGANDEEP SINGH 1 GURCHARANJIT SINGH 2 Department of Mathematics, Majha College for Women, Tarn-Taran (Punjab), (India) Department of Mathematics, Guru Nanak Dev University College, Chungh, Tarn-Taran (Punjab), (India) <p style="text-align: justify;">In this paper, the authors investigate the initial coefficient bounds for a new generalized subclass of multivalent functions related to Sigmoid function. Also the relevant connections to Fekete-Szeg&ouml; inequality and Hankel determinant for these classes are briefly discussed. Our results serve as a new generalization in this direction.</p> https://www.ultrascientist.org/paper/1457/ Analytic functions Starlike function Alpha-convex function 30C45, 33E99