On Symmetric and Antisymmetric Relations.
On symmetric functions and the spin characters of
On symmetric words in nilpotent groups.
On symmetric words in nilpotent groups
On symmetries and parallelogram spaces.
The notion of a TST-space is introduced and its connection with a parallelogram space is given. The existence of a TST-space is equivalent to the existence of a parallelogram space, which is a new characterization of a parallelogram space. The structure of a TST-space is described in terms of an abelian group.
On symplectic groups over polynomial rings.
On syntacticity of finite regular semigroups.
On systems of linear inequalities
We show in detail that the category of general Roth systems or the category of semi-stable systems of linear inequalities of slope zero is a neutral Tannakian category. On the way, we present a new proof of the semi-stability of the tensor product of semi-stable systems. The proof is based on a numerical criterion for a system of linear inequalities to be semi-stable.
On (t + ...)-transitive Permutation Groups.
On Takizawa's construction for E-unitary R-unipotent semigroups
On tame automorphisms of some metabelian groups.
On ternary semigroups of homomorphisms of ordered sets
The paper deals with the characterization of ordered sets by means of ternary semigroups of homomorphisms of ordered sets.
On the 1-Cohomology of the General and Special Linear Groups.
On the Additive Groups of Finite Near Integral Domains and Simple d.g. Near Rings.
On the additive semigroup of ordered semirings.
On the additive semigroup structure of semirings.
On the additive structure of a class of ordered semirings.
On the affine Weyl group of type .
On the Albanese variety of the moduli space of polarized K3 surfaces.
On the algebraic characterization of systems of partial mappings