Abstract
We review cohomology theories corresponding to the chiral and classical operads. The first one is the cohomology theory of vertex algebras, while the second one is the classical cohomology of Poisson vertex algebras (PVA), and we construct a spectral sequence relating them. Since in “good” cases the classical PVA cohomology coincides with the variational PVA cohomology and there are well-developed methods to compute the latter, this enables us to compute the cohomology of vertex algebras in many interesting cases. Finally, we describe a unified approach to integrability through vanishing of the first cohomology, which is applicable to both classical and quantum systems of Hamiltonian PDEs.
Similar content being viewed by others
References
B. Bakalov, A. D’Andrea and V.G. Kac, Theory of finite pseudoalgebras, Adv. Math., 162 (2001), 1–140.
B. Bakalov, A. De Sole, R. Heluani and V.G. Kac, An operadic approach to vertex algebra and Poisson vertex algebra cohomology, Jpn. J. Math., 14 (2019), 249–342.
B. Bakalov, A. De Sole, R. Heluani and V.G. Kac, Chiral versus classical operad, Int. Math. Res. Not. IMRN, 2020 (2020), no. 19, 6463–6488.
B. Bakalov, A. De Sole, V.G. Kac and V. Vignoli, Poisson vertex algebra cohomology and differential Harrison cohomology, Progr. Math. (to appear); preprint, arXiv:1907.06934.
B. Bakalov, A. De Sole, R. Heluani, V.G. Kac and V. Vignoli, Classical and variational Poisson cohomology, in preparation.
B. Bakalov, A. De Sole and V.G. Kac, Computation of cohomology of Lie conformal and Poisson vertex algebras, Selecta Math. (N.S.), 26 (2020), 50.
B. Bakalov and V.G. Kac, Field algebras, Int. Math. Res. Not., 2003 (2003), 123–159.
B. Bakalov, V.G. Kac and A.A. Voronov, Cohomology of conformal algebras, Comm. Math. Phys., 200 (1999), 561–598.
A. Barakat, A. De Sole and V.G. Kac, Poisson vertex algebras in the theory of Hamiltonian equations, Jpn. J. Math., 4 (2009), 141–252.
A. Beilinson and V. Drinfeld, Chiral Algebras, Amer. Math. Soc. Colloq. Publ., 51, Amer. Math. Soc., Providence, RI, 2004.
R.E. Borcherds, Vertex algebras, Kac-Moody algebras, and the Monster, Proc. Nat. Acad. Sci. U.S.A., 83 (1986), 3068–3071.
A. D’Andrea and V.G. Kac, Structure theory of finite conformal algebras, Selecta Math. (N.S.), 4 (1998), 377–418.
A. De Sole and V.G. Kac, Freely generated vertex algebras and nonlinear Lie conformal algebras, Comm. Math. Phys., 254 (2005), 659–694.
A. De Sole and V.G. Kac, Finite vs. affine W-algebras, Jpn. J. Math., 1 (2006), 137–261.
A. De Sole and V.G. Kac, Lie conformal algebra cohomology and the variational complex, Comm. Math. Phys., 292 (2009), 667–719.
A. De Sole and V.G. Kac, Essential variational Poisson cohomology, Comm. Math. Phys., 313 (2012), 837–864.
A. De Sole and V.G. Kac, The variational Poisson cohomology, Jpn. J. Math., 8 (2013), 1–145.
D.K. Harrison, Commutative algebras and cohomology, Trans. Amer. Math. Soc., 104 (1962), 191–204.
G. Hochschild, On the cohomology groups of an associative algebra, Ann. of Math. (2), 46 (1945), 58–67.
V.G. Kac, Vertex Algebras for Beginners. 2nd ed., Univ. Lecture Ser., 10, Amer. Math. Soc., Providence, RI, 1998.
V.G. Kac and M. Wakimoto, Quantum reduction and representation theory of superconformal algebras, Adv. Math., 185 (2004), 400–458.
I.S. Krasil’shchik, Schouten bracket and canonical algebras, In: Global Analysis—Studies and Applications. III, Lecture Notes in Math., 1334, Springer-Verlag, 1988, pp. 79–110.
H. Li, Vertex algebras and vertex Poisson algebras, Commun. Contemp. Math., 6 (2004), 61–110.
J. McCleary, A User’s Guide to Spectral Sequences. 2nd ed., Cambridge Stud. Adv. Math., 58, Cambridge Univ. Press, 2001.
A. Nijenhuis and R.W. Richardson. Jr., Deformations of Lie algebra structures, J. Math. Mech., 17 (1967), 89–105.
P.J. Olver, Bi-Hamiltonian systems, In: Ordinary and Partial Differential Equations, Pitman Res. Notes Math. Ser., 157, Longman Sci. Tech., New York, 1987, pp. 176–193.
D. Tamarkin, Deformations of chiral algebras, In: Proceedings of the International Congress of Mathematicians. Vol. II, Beijing, 2002, pp. 105–116.
Acknowledgements
This research was partially conducted during the authors’ visits to MIT and to the University of Rome La Sapienza. The first author was supported in part by a Simons Foundation grant 584741. The second author was partially supported by the national PRIN fund n. 2015ZWST2C_001 and the University funds n. RM116154CB35DFD3 and RM11715C7FB74D63. All three authors were supported in part by the Bert and Ann Kostant fund.
Author information
Authors and Affiliations
Corresponding authors
Additional information
Communicated by: Yasuyuki Kawahigashi
Publisher’s Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
About this article
Cite this article
Bakalov, B., De Sole, A. & Kac, V.G. Computation of cohomology of vertex algebras. Jpn. J. Math. 16, 81–154 (2021). https://doi.org/10.1007/s11537-020-2034-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11537-020-2034-9
Keywords and phrases
- chiral and classical operads
- vertex algebra cohomology
- classical and variational Poisson cohomology
- Harrison cohomology
- spectral sequences