Recreational APL: Goldbach's conjecture

It is known from group theory that multiplication tables for finite groups are Latin squares. These basic Latin squares have proved useful for solving various problems, for example, problems of memory management in parallel computing systems, organizing ...

Let d>=3. In PG(d(d+3)/2,2), there are four known non-isomorphic d-dimensional dual hyperovals by now. These are Huybrechts' dual hyperoval (Huybrechts (2002) [6]), Buratti-Del Fra's dual hyperoval (Buratti and Del Fra (2003) [1], Del Fra and Yoshiara (...

A graph is one-regular if its automorphism group acts regularly on the set of arcs of the graph. Marusic and Pisanski [D. Marusic and T. Pisanski, Symmetries of hexagonal graphs on the torus, Croat. Chemica Acta 73 (2000) 969-981] classified one-regular ...