Non-symmetric orthogonal geometry of Grothendieck rings of coherent sheaves on projective spaces

A. L. Gorodentsev

In this paper we consider orthogonal geometry of the free $\protect\ZZ$-module $K_0(\protect\PP_n)$ with respect to the non-symmetric unimodular bilinear form $$χ(E,F)=\sum (-1)^ν\…