2004/24/2

Commutation of operations and its relationship with Menger and Mann superpositions

A groupoid characterization of Boolean algebras

On ternary semifields

Lattice-inadmissible incidence structures

Convergence with a regulator in directed groups

Generalized inflations and null extensions

On the structure and zero divisors of the Cayley-Dickson sedenion algebra

On varieties of left distributive left idempotent groupoids