2604.01295 The Chow Ring of the Moduli Space of Spin Curves M_g^{1/2} Is Tautological for g >= 12
We establish a new result in algebraic geometry and combinatorics: the chow ring of the moduli space of spin curves m_g^{1/2} is tautological for g >= 12. Our proof introduces a novel filtration technique combined with deformation-theoretic arguments that resolve a long-standing open question in the field.