Abstract
For a quasi-split Satake diagram, we define a modified q-Weyl algebra, and show that there is an algebra homomorphism between it and the corresponding ıquantum group. In other words, we provide a differential operator approach to ıquantum groups. Meanwhile, the oscillator representations of ıquantum groups are obtained. The crystal basis of the irreducible subrepresentations of these oscillator representations are constructed.
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Bao, H. C., Kujawa, J., Li, Y. Q., et al.: Geometric Schur duality of classical type. Transform. Groups, 23, 329–389 (2018)
Bao, H. C., Shan, P., Wang, W. Q., et al.: Categorification of quantum symmetric pairs I. Quantum Topol., 9, 643–714 (2018)
Bao, H. C., Wang, W. Q.: A new approach to Kazhdan—Lusztig theory of type B via quantum symmetric pairs. Astérisque, 402, vii+134 pp. (2018)
Beilinson, A., Lusztig, G., MacPherson, R.: A geometric setting for the quantum deformation of GLn. Duke Math. J., 61, 655–677 (1990)
Bridgeland, T.: Quantum groups via Hall algebras of complexes. Ann. Math., 177, 739–759 (2013)
Chen, X. H., Lu, M., Wang, W. Q.: A Serre presentation for the ıquantum groups. Transform. Groups, 26, 827–857 (2021)
Drinfeld, V.: Quantum groups. Proc. Int. Congr. Math. Berkeley, 1, 798–820 (1987)
Du, J., Fu, Q.: Quantum affine \({\mathfrak{gl}}_n\) via Hecke algebras. Adv. Math., 282, 23–46 (2015)
Du, J., Lin, Y. N., Zhou, Z. G.: Quantum queer supergroups via v-differential operators. J. Algebra, 599, 48–103 (2022)
Du, J., Wu, Y. D.: A new realisation of the i-quantum groups \(\mathbf{U}^{\cal{J}}(n)\). J. Pure Appl. Algebra, 226, 106793 (2022)
Du, J., Wu, Y. D.: The i-quantum group Uı(n). Pacific J. Math., 320, 61–101 (2022)
Du, J., Zhou, Z. G.: The regular representation of \(U_{v}({\mathfrak{gl}}_{m\vert n})\). Proc. Amer. Math. Soc., 148, 111–124 (2020)
Fan, Z. B., Lai, C. J., Li, Y. Q., et al.: Affine flag varieties and quantum symmetric pairs. Mem. Amer. Math. Soc., 265, (1285), v+123 pp. (2020)
Fan, Z. B., Lai, C. J., Li, Y. Q., et al.: Affine Hecke algebras and quantum symmetric pairs. Mem. Amer. Math. Soc., 281(1386), ix+92 pp. (2023)
Fan, Z. B., Lai, C. J., Li, Y. Q., et al.: Quantum Schur duality of affine type C with three parameters. Math. Res. Lett., 27, 79–114 (2020)
Fan, Z. B., Ma, H. T., Xiao, H. S. L.: Equivariant K-theory approach to ı-quantum groups. Publ. Res. Inst. Math. Sci., 58, 635–668 (2022)
Ginzburg, V., Vasserot, E.: Langlands reciprocity for affine quantum groups of type An. Internat. Math. Res. Not., 3, 67–85 (1993)
Hayashi, T.: Q-analogues of Clifford and Weyl algebras–spinor and oscillator representations of quantum enveloping algebras. Commun. Math. Phys., 127, 129–144 (1990)
Hong, J., Kang, S. J.: Introduction to Quantum Groups and Crystal Bases, Grad. Stud. Math., Vol. 42, Amer. Math. Soc., Providence, RI, 2002
Hu, N. H.: Quantum divided power algebra, q-derivatives, and some new quantum groups. J. Algebra, 232, 507–540 (2000)
Jimbo, M.: A q-analogue of U (gl(N+1)), Hecke algebra, and the Yang–Baxter equation. Lett. Math. Phys., 11, 247–252 (1986)
Kashiwara, M.: On crystal bases of the q-analogue of the universal enveloping algebra. Duke Math. J., 63, 465–516 (1991)
Lu, M., Wang, W. Q.: Hall algebras and quantum symmetric pairs I: foundations. Proc. Lond. Math. Soc., 124, 1–82 (2022)
Lu, M., Wang W. Q.: Hall algebras and quantum symmetric pairs II: reflection functors. Commun. Math. Phys., 381, 799–855 (2021)
Lu, M., Wang W. Q.: Hall algebras and quantum symmetric pairs III: quiver varieties. Adv. Math., 393, 108071 (2021)
Lu, M., Wang, W. Q.: Hall algebras and quantum symmetric pairs of Kac–Moody type. Adv. Math., 430, 109215 (2023)
Lusztig, G.: Introduction to Quantum Groups, Modern Birkhauser Classics, Reprint of the 1993 Edition, Birkhäuser, Boston, 2010
Ringel, C. M.: Hall algebras and quantum groups. Invent. Math., 101, 583–591 (1990)
Watanabe, H.: Crystal basis theory for a quantum symmetric pair (U, \(\mathbf{U}^{\cal{J}}\)). Int. Math. Res. Not., 22, 8292–8352 (2020)
Watanabe, H.: Global crystal bases for integrable modules over a quantum symmetric pair of type AIII. Represent. Theory, 25, 27–66 (2021)
Zhang, J., Hu, N. H.: Realization of Uq \(U_{q}({\mathfrak{sp}}_{2n})\) within the differential algebra on quantum symplectic space. Symmetry, Integrability and Geometry: Methods and Applications, SIGMA, 13, 084, 21 pp. (2017)
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We thank the referees for many useful comments and suggestions.
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The first author was partially supported by the NSF of China grant 12271120, the NSF of Heilongjiang Province grant JQ2020A001, and the Fundamental Research Funds for the Central Universities
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Fan, Z.B., Geng, J.C. & Han, S.L. Differential Operator Approach to ıquantum Groups and Their Oscillator Representations. Acta. Math. Sin.-English Ser. 40, 1360–1374 (2024). https://doi.org/10.1007/s10114-024-2151-0
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DOI: https://doi.org/10.1007/s10114-024-2151-0