فهرست مقالات Ahmad Mohammadic مقاله 1 - Portfolio optimization using gray wolf algorithm and modified Markowitz model based on CO-GARCH modeling 10.22034/amfa.2022.1966381.1787 Fahime Jahanian Ahmad Mohammadi seyyed ali paytakhti oskooe Aliasghar Mottaghi Advances in Mathematical Finance and Applications , شماره 5 , سال 9 , زمستان 2024