vol.28 (2020) No. 1

M. Afkhami, K. Khashyarmanesh and F. Shahsavar
On the properties of zero-divisor graphs of posets, pp.1-16
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W. Atiponrat and R. Maungchang
Continuous homomorphisms, the left-gyroaddition action and topological quotient gyrogroups, pp.17-28
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G. Biyogmam, S. Tchamna and C. Tcheka
From quotient trigroups to groups, pp.29-41
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M. Borralho
The transitivity of primary conjugacy in a class of semigroups, pp.43-46
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S.S. Davidov and D.A. Shahnazaryan
Hyperidentities with permutations leading to the isotopy of invertible binary algebras to a group, pp.47-52
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W.A. Dudek and R.A.R. Monzo
Translatability determines the structure of certain types of idempotent quasigroups, pp.53-76
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K. Hansda and A. Jamadar
Characterization of inverse ordered semigroups by their ordered idempotents and bi-ideals, pp.77-88
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A. Hasanvand and R. Rezaei
The equivalence graph of the comaximal graph of a group, pp.89-100
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M. Hassanzadeh and S. Sutlu
Matched pairs of m-invertible Hopf quasigroups, pp.101-138
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T. Imran, M. Ashiq and M.A. Zaighum
Computational approach for intransitive action of Delta(2,4,k) on PL(Fq), pp.139-148
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S. Kar, A. Roy and I. Dutta
On regularities in po-ternary semigroups, pp.149-158
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H.B. Shelash and A.R. Ashrafi
Table of marks and markaracter table of certain finite groups, pp.159-170
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vol.28 (2020) No. 2