TY - JOUR AU - Mallikarjun G. Shrigan TI - Second Hankel determinant for bi-univalent functions associated with $q$-differential operator JO - Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika PY - 2022 SP - 663 EP - 671 VL - 15 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JSFU_2022_15_5_a13/ LA - en ID - JSFU_2022_15_5_a13 ER -