Volume & Issue: Volume 7, Issue 34, March and April 2022 
Evaluating and classifying the insurers risk in the insurance industry using data envelopment analysis

Pages 5-32

Seyyedeh Nasim Shobeiri; Mohsen Rostamy- Malkhalifeh; Hashem Nikoomaram; Mohammadreza Miri Lavasani

An enhanced Russell model to measure aggregate efficiency of multi-period production systems

Pages 95-108

Mohammad Najari Alamouti; Mohsen Khounsiavash; Reza Kazimi Matin; Zohreh Moghaddas

Characterization of cubic derivations on various class of Banach algebras

Pages 169-178

Fariba Farajpour; Ali Ebadian; Shahram Najafzadeh

New bounds on weak odd dominating set in trees

Pages 179-188

Hadi Rahbani; Sayed N .Doustimotlagh; Nader Jafari Rad