Abstract:
We revisit the non-commutative Hodge-to-de Rham degeneration theorem of the first author and present its proof in a somewhat streamlined and improved form that explicitly uses spectral algebraic geometry. We also try to explain why topology is essential to the proof.
The work was supported in part by the BASIS Foundation, project no. 18-1-6-95-1, Leader (Math). The first two authors were also supported by the HSE Basic Research Program and the Russian Academic Excellence Project “5-100.”
Citation:
D. B. Kaledin, A. A. Konovalov, K. O. Magidson, “Spectral Algebras and Non-commutative Hodge-to-de Rham Degeneration”, Algebra, number theory, and algebraic geometry, Collected papers. Dedicated to the memory of Academician Igor Rostislavovich Shafarevich, Trudy Mat. Inst. Steklova, 307, Steklov Mathematical Institute of RAS, Moscow, 2019, 63–77; Proc. Steklov Inst. Math., 307 (2019), 51–64