Debarre–Huybrechts–Macrì–Voisin conjecture on numerical invariants of hyper-Kähler manifolds
Debarre–Huybrechts–Macrì–Voisin conjecture. Then cX=(2n−1)!!c_X=(2n-1)!!cX=(2n−1)!! and the Huybrechts–Riemann–Roch polynomial of XXX is