Ss. Ryshkov et Rm. Erdal, DUAL SYSTEMS OF INTEGER VECTORS (GENERAL QUESTIONS AND APPLICATIONS TO THE GEOMETRY OF POSITIVE QUADRATIC-FORMS), Mathematics of the USSR. Sbornik, 74(2), 1993, pp. 541-554
After giving a brief introduction to our new ''theory of dual systems
of integer vectors'', we give the first applications to the theory of
positive quadratic forms. We consider the question of enumerating the
L-polytopes of lattices, paying particular attention to the case of fi
ve-dimensional lattices. The results reported in this paper were annou
nced earlier by the authors in Doklady [1]; here we give the details.