Idempotence-preserving maps between matrix spaces over fields of characteristic 2.
Identities and the group of isostrophisms
In this paper we reexamine the concept of isostrophy. We connect it to the notion of term equivalence, and describe the action of dihedral groups that are associated with loops by means of isostrophy. We also use it to prove and present in a new way some well known facts on -inverse loops and middle Bol loops.
Invariant Subspaces and Spectral Conditions on Operator Semigroups
Isomorphism of generalized triangular matrix-rings and recovery of tiles.