Volume & Issue: Volume 12, Issue 1, Winter and Spring 2020 
2. Witt rings of quadratically presentable fields

Pages 1-23

Pawel Gladki; Krzysztof Worytkiewicz


3. On $GPW$-Flat Acts

Pages 25-42

Hamideh Rashidi; Akbar Golchin; Hossein Mohammadzadeh Saany


4. $(m,n)$-Hyperideals in Ordered Semihypergroups

Pages 43-67

Ahsan Mahboob; Noor Mohammad Khan; Bijan Davvaz


5. On exact category of $(m, n)$-ary hypermodules

Pages 69-88

Najmeh Jafarzadeh; Reza Ameri


7. Some aspects of cosheaves on diffeological spaces

Pages 123-147

Alireza Alireza Ahmadi; Akbar Dehghan Nezhad


9. Classification of monoids by Condition $(PWP_{ssc})$

Pages 175-197

Pouyan Khamechi; Hossein Mohammadzadeh Saany; Leila Nouri