Abstract
In this paper, we study weight modules over a class of graded Lie algebras, which were introduced by Olivier Mathieu when he classified simple graded Lie algebras of finite growth. We show that any weight module over such algebras with finite dimensional weight spaces can be decomposed into three parts. As a consequence, we give rough descriptions of indecomposable and simple weight modules. Some examples are also presented.
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Arbarello, E., De Concini, C., Kac, V.G., Procesi, C.: Moduli spaces of curves and representation theory. Commun. Math. Phys. 117(1), 1–36 (1988)
Chen, H., Guo, X.: New simple modules for the Heisenber–Virasoro algebra. J. Algebra 390, 77–86 (2013)
Chen, H., Guo, X., Zhao, K.: Tensor product weight modules over the Virasoro algebra. J. Lond. Math. Soc. (2013). doi:10.1112/jlms/jdt046
Chen, H., Guo, X., Zhao, K.: Irreducible quasifinite modules over a class of Lie algebras of Block type. Asian J. Math. (2013)
Conley, C., Martin, C.: A family of irreducible representations of the Witt Lie algebra with infinite-dimensional weight spaces. Compos. Math. 128(2), 153–175 (2001)
Futorny, V.: Representations of affine Lie algebras. In: Queen’s Papers in Pure and Applied Mathematics, vol. 106, xii+89 pp. Queen’s University, Kingston, ON (1997)
Feigin, B., Fuchs, D.: Representations of the Virasoro algebra. In: Representation of Lie Groups and Related Topics. Adv. Stud. Contemp. Math, vol. 7, pp. 465–554. Gordon and Breach, New York (1990)
Felinska, E., Jaskolski, Z., Kosztolowicz, M.: Whittaker pairs for the Virasoro algebra and the Gaiotto–Bonelli–Maruyoshi–Tanzini states. J. Math. Phys. 53(3), 033504, 16 pp. (2012)
Guo, X., Liu, X.: Weight modules with a finite dimensional weight space over truncated Virasoro algebras. J. Math. Phys. 51(12), 123522 (2010)
Guo, X., Lu, R., Zhao, K.: Fraction representations and highest-weight-like representations of the Virasoro algebra. J. Algebra 387, 68–86 (2013)
Guo, X., Lu, R., Zhao, K.: Simple Harish–Chandra modules, intermediate series modules, and Verma modules over the loop-Virasoro algebra. Forum Math. 23, 1029–1052 (2011)
Kac, V., Raina, A.: Bombay lectures on highest weight representations of infnite dimensional Lie algebras. World Scientific, Singapore (1987)
Lu, R., Guo, X., Zhao, K.: Irrreducible modules over the Virasoro algebra. Doc. Math. 16, 709–721 (2011)
Liu, G., Lü, R., Zhao, K.: A class of simple weight Virasoro modules (2012). arXiv:1211.0998
Li, J., Su, Y.: Representations of the Schrodinger–Virasoro algebras. J. Math. Phys. 49(5), 053512, 14 pp (2008)
Lü, R., Zhao, K.: A family of simple weight modules over the Virasoro algebra (2013). arXiv:1303.0702
Lü, R., Zhao, K.: Irreducible Virasoro modules from irreducible Weyl modules (2012). arXiv:1209.3746
Mathieu, O.: Classification of simple graded Lie algebras of finite growth. Invent. Math. 108(3), 455–519 (1992)
Mathieu, O.: Classification of Harish–Chandra modules over the Virasoro Lie algebra. Invent. Math. 107(2), 225–234 (1992)
Martin, C., Piard, A.: Indecomposable Modules Over the Virasoro Lie algebra and a Conjecture of Kac. Commun. Math. Phys. 137, 109–132 (1991)
Martin, C., Piard, A.: Nonbounded indecomposable admissible modules over the Virasoro algebra. Lett. Math. Phys. 23, 319–324 (1991)
Mazorchuk, V., Wiesner, E.: Simple Virasoro modules induced from codimension one subalgebras of the positive part. Proc. AMS (2012). arXiv:1209.1691
Mazorchuk, V., Zhao, K.: Classification of simple weight Virasoro modules with a finite-dimensional weight space. J. Algebra 307, 209–214 (2007)
Mazorchuk, V., Zhao, K.: Simple Virasoro modules which are locally finite over a positive part (2012). arXiv:1205.5937
Ondrus, M., Wiesner, E.: Whittaker modules for the Virasoro algebra. J. Algebra Appl. 8(3), 363–377 (2009)
Roger, C., Unterberger, J.: The Schrodinger–Virasoro Lie group and algebra: representation theory and cohomological study. Ann. Henri Poincaré 7(7–8), 1477–1529 (2006)
Tan, H., Zhao, K.: Irreducible modules from tensor produces (2013). arXiv:1301.2131
Tan, H., Zhao, K.: Irreducible modules from tensor produces (II). J. Algebra. 394, 357–373 (2013)
Yanagida, S.: Whittaker vectors of the Virasoro algebra in terms of Jack symmetric polynomial. J. Algebra 333(1), 273–294 (2011)
Zhang, H.: A class of representations over the Virasoro algebra. J. Algebra 190(1), 1–10 (1997)
Zhang, W., Dong, C.: W-algebra W(2, 2) and the vertex operator algebra \(L(\frac{1}{2}, 0)\otimes L(\frac{1}{2}, 0)\). Commun. Math. Phys. 285, 991–1004 (2009)
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Liu, X., Guo, X. Weight Modules Over a Class of Graded Lie Algebras. Algebr Represent Theor 17, 1235–1248 (2014). https://doi.org/10.1007/s10468-013-9444-9
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DOI: https://doi.org/10.1007/s10468-013-9444-9