Bivariant class of degree one

Vincenzo Di Gennaro, Davide Franco, Carmine Sessa

Let $f:X\to Y$ be a projective birational morphism, between complex quasi-projective varieties. Fix a bivariant class $θ\in H^0(X\stackrel{f}\to Y)\cong Hom_{D^{b}_{c}(Y)}(Rf_*\mat…