1997/81/3

Diagonal cubic equations

Root systems and the Erdős-Szekeres Problem

Tate-Shafarevich groups of the congruent number elliptic curves

Elementary abelian 2-primary parts of K₂ and related graphs in certain quadratic number fields

On explicit construction of Hilbert-Siegel modular forms of degree two

Cyclic coverings of an elliptic curve with two branch points and the gap sequences at the ramification points