Formality conjecture for K3 surfaces
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DOI: 10.1112/s0010437x19007206
Abstract: We give a proof of the formality conjecture of Kaledin and Lehn: on a complex projective K3 surface, the differential graded (DG) algebra $\operatorname{RHom}^{\bullet }(F,F)$ is formal for any sheaf $F$ polystable with respect to… read more here.
Keywords: formality conjecture; formality; conjecture surfaces;