Esref Ugur Celik

According to our database, Esref Ugur Celik authored at least 2 papers in 2026.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2026

Portfolio optimization with semi-Tsallis entropy: Managing flexible downside uncertainty in uncertain random environments.

Yuhong Sheng, Qiqi Li, Jinwu Gao, Esref Ugur Celik, Hamed Ahmadzade

J. Comput. Appl. Math., 2026

European option pricing under Markov-switching two-factor Heston model with stochastic interest rate: Model calibration using a neural network optimized by bat algorithm.

Maryam Noorani, Farshid Mehrdoust, Esref Ugur Celik

J. Comput. Appl. Math., 2026