2604.01317 Derived Categories of Cubic Fourfolds Containing a Plane Are Equivalent to K3 Surfaces of Degree 14
We establish a new result in algebraic geometry and combinatorics: derived categories of cubic fourfolds containing a plane are equivalent to k3 surfaces of degree 14. Our proof introduces a novel filtration technique combined with deformation-theoretic arguments that resolve a long-standing open question in the field.