Seidel-Equivalence in LB3 (6) Graphs.
Simple Groups and Möbius Planes of Even Order.
Some combinatorial properties of conics in the Hjelmslev plane
Some Discussions Related to Disjoint Ber's Subplanes
Some Generalized Quadrangles with Parameters q2, q.
Some problems of classification of points in the Desarguesian Hjelmslev plane
Squeezing the Accordion in a Strongly n-Uniform Hjelmslev Plane.
Strongly n-Uniform and Level n-Hjelmslev Planes.
Strongly regular locally -graphs.
Subplane replacement in projective planes.
Substitutions, abstract number systems and the space filling property
In this paper we study multi-dimensional words generated by fixed points of substitutions by projecting the integer points on the corresponding broken halfline. We show for a large class of substitutions that the resulting word is the restriction of a linear function modulo and that it can be decided whether the resulting word is space filling or not. The proof uses lattices and the abstract number system associated with the substitution.
Sulla famiglia dei flocks lineari di una quadrica iperbolica assolutamente irriducibile di uno spazio proiettivo finito
In questa Nota diamo una caratterizzazione dell'insieme di tutti i flocks lineari della quadrica iperbolica assolutamente irriducibile in .