Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-22T07:28:43.105Z Has data issue: false hasContentIssue false

EQUIVARIANT ALGEBRAIC INDEX THEOREM

Published online by Cambridge University Press:  27 August 2019

Alexander Gorokhovsky
Affiliation:
Kobenhavns Universitet Det Natur-og Biovidenskabelige Fakultet, Mathematics, Universitetsparken 5, 2100, Copenhagen, Denmark (rnest@math.ku.dk)
Niek de Kleijn
Affiliation:
Kobenhavns Universitet Det Natur-og Biovidenskabelige Fakultet, Mathematics, Universitetsparken 5, 2100, Copenhagen, Denmark (rnest@math.ku.dk)
Ryszard Nest
Affiliation:
Kobenhavns Universitet Det Natur-og Biovidenskabelige Fakultet, Mathematics, Universitetsparken 5, 2100, Copenhagen, Denmark (rnest@math.ku.dk)

Abstract

We prove a $\unicode[STIX]{x1D6E4}$-equivariant version of the algebraic index theorem, where $\unicode[STIX]{x1D6E4}$ is a discrete group of automorphisms of a formal deformation of a symplectic manifold. The particular cases of this result are the algebraic version of the transversal index theorem related to the theorem of A. Connes and H. Moscovici for hypo-elliptic operators and the index theorem for the extension of the algebra of pseudodifferential operators by a group of diffeomorphisms of the underlying manifold due to A. Savin, B. Sternin, E. Schrohe and D. Perrot.

Type
Research Article
Copyright
© Cambridge University Press 2019

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Alexander Gorokhovsky was partially supported by an NSF grant. Niek de Kleijn and Ryszard Nest were supported by the Danish National Research Foundation through the Centre for Symmetry and Deformation (DNRF92). Niek de Kleijn was also partially supported by the IAP ‘Dygest’ of the Belgian Science Policy.

References

Atiyah, M. and Singer, I., The index of elliptic operators on compact manifolds, Bull. Amer. Math. Soc. (N.S.) 69 (1963), 422433.CrossRefGoogle Scholar
Bressler, P., Nest, R. and Tsygan, B., Riemann–Roch theorems via deformation quantization I, Adv. Math. 167 (2002), 125.CrossRefGoogle Scholar
Bressler, P., Nest, R. and Tsygan, B., Riemann–Roch theorems via deformation quantization II, Adv. Math. 167 (2002), 2673.CrossRefGoogle Scholar
Connes, A., Non-commutative differential geometry, Publ. Math. Inst. Hautes Études Sci. 62 (1985), 257360.CrossRefGoogle Scholar
Connes, A., Non-commutative Geometry (Academic Press, San Diego, 1990).Google Scholar
Connes, A. and Moscovici, H., Hopf algebras, cyclic cohomology and the transverse index theorem, Commun. Math. Phys. 198 (1998), 199246.CrossRefGoogle Scholar
Bressler, P., Gorokhovsky, A., Nest, R. and Tsygan, B., Algebraic index theorem for symplectic deformations of gerbes, in Non-commutative Geometry and Global analysis, Contemporary Mathematics, vol. 546, (Amer. Math. Soc., Providence, RI, 2011).Google Scholar
Dupont, J., Simplicial de Rham cohomology and characteristic classes of flat bundles, Topology 15(3) (1976), 233245.CrossRefGoogle Scholar
Dupont, J., Curvature and Characteristic Classes, LNM, 640 (Springer, Heidelberg, 1978).CrossRefGoogle Scholar
Fedosov, B., The index theorem for deformation quantization, in Boundary Value Problems, Schrödinger Operators, Deformation Quantization, Advances in Partial Differential Equations, pp. 319333 (Akademie, Berlin, 1995).Google Scholar
Fedosov, B., Deformation Quantization and Index Theory, 1st edn, chapter 5 and 6, (Akademie Verlag, Berlin, 1996).Google Scholar
Gelfand, I., Cohomology of Infinite-Dimensional Lie Algebras. Some Questions in Integral Geometry, Actes du Congrès International des Mathématiciens (Nice, 1970), Tome 1 pp. 95111 (Gauthier-Villars, Paris, 1971).Google Scholar
Gelfand, I. and Kazhdan, D., Certain questions of differential geometry and the computation of the cohomologies of the Lie algebras of vector fields, Soviet Math. Doklady 12 (1971), 13671370.Google Scholar
Getzler, E. and Jones, J., The cyclic homology of crossed product algebras, J. Reine Angew. Math. 445 (1993), 161174.Google Scholar
de Kleijn, N., Extension and classification of group actions on formal deformation quantizations of symplectic manifolds, Preprint, 2016, arXiv:1601.05048.Google Scholar
Loday, J.-L., Cyclic Homology, 2nd edn, GMW 301 (Springer, Heidelberg, 1998).CrossRefGoogle Scholar
Nest, R. and Tsygan, B., Algebraic index theorem, Commun. Math. Phys. 172 (1995), 223262.CrossRefGoogle Scholar
Nest, R. and Tsygan, B., Algebraic index theorem for families, Adv. Math. 113(2) (1995), 151205.CrossRefGoogle Scholar
Nest, R. and Tsygan, B., Formal versus analytic index theorems, Int. Math. Res. Not. IMRN 11 (1996).Google Scholar
Nest, R. and Tsygan, B., Deformations of symplectic Lie algebroids, deformations of holomorphic symplectic structures, and index theorems, Asian J. Math. 5(4) (2001), 599635.CrossRefGoogle Scholar
Perrot, D. and Rodsphon, R., An equivariant index theorem for hypo-elliptic operators, Preprint, 2014, arXiv:1412.5042.Google Scholar
Pflaum, M., Posthuma, H. and Tang, X., An algebraic index theorem for orbifolds, Adv. Math. 210 (2007), 83121.CrossRefGoogle Scholar
Pflaum, M., Posthuma, H. and Tang, X., On the algebraic index for Riemannian étale groupoids, Lett. Math. Phys. 90 (2009), 287310.CrossRefGoogle Scholar
Savin, A., Schrohe, E. and Sternin, B., Uniformization and index of elliptic operators associated with diffeomorphisms of a manifold, Russ. J. Math. Phys. 22(3) (2015), 410420.CrossRefGoogle Scholar
Savin, A., Schrohe, E. and Sternin, B., On the index formula for an isometric diffeomorphism. (Russian), Sovrem. Mat. Fundam. Napravl. 46 (2012), 141152. translation in J. Math. Sci. (N.Y.) 201:818–829 (2014).Google Scholar
Savin, A., Schrohe, E. and Sternin, B., The index problem for elliptic operators associated with a diffeomorphism of a manifold and uniformization. (Russian), Dokl. Akad. Nauk 441(5) (2011), 593596. translation in Dokl. Math. 84 (2011), no. 3, 846–849.Google Scholar
Savin, A. and Sternin, B., Elliptic theory for operators associated with diffeomorphisms of smooth manifolds, in Papers from the 8th Congress of the International Society for Analysis, its Applications and Computations (ISAAC) held at the Peoples’ Friendship University of Russia, Moscow, August 22–27, 2011 (Birkhäuser/Springer Basel AG, Basel, 2013).Google Scholar