163-170 | On connectedness of graphs on Weyl groups of type $A\sb n$ ($n\geq 4$). Youssef, Samy A.; Hulsurkar, S. G. |
171-181 | Pre-solid varieties of semigroups. Denecke, K.; Koppitz, J. |
183-200 | Total connections in Lie groupoids. Virsik, George |
201-204 | A commutativity theorem for associative rings. Ashraf, Mohammad |
205-216 | Induced isomorphisms of certain ternary semigroups. Chronowski, Antoni; Novotný, Miroslav |
217-238 | Conjugacy criteria and principal solutions of self-adjoint differential equations. Došlý, Ondřej; Komenda, Jan |
239-249 | Some natural operators on vector fields. Tomáš, Jiří |