Jordan-Hölder theorem for finite dimensional Hopf algebras
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Abstract:
We show that a Jordan-Hölder theorem holds for appropriately defined composition series of finite dimensional Hopf algebras. This answers an open question of N. Andruskiewitsch. In the course of our proof we establish analogues of the Noether isomorphism theorems of group theory for arbitrary Hopf algebras under certain faithful (co)flatness assumptions. As an application, we prove an analogue of Zassenhaus’ butterfly lemma for finite dimensional Hopf algebras. We then use these results to show that a Jordan-Hölder theorem holds as well for lower and upper composition series, even though the factors of such series may not be simple as Hopf algebras.References
- Nicolás Andruskiewitsch, About finite dimensional Hopf algebras, Quantum symmetries in theoretical physics and mathematics (Bariloche, 2000) Contemp. Math., vol. 294, Amer. Math. Soc., Providence, RI, 2002, pp. 1–57. MR 1907185, DOI 10.1090/conm/294/04969
- Nicolás Andruskiewitsch, Notes on extensions of Hopf algebras, Canad. J. Math. 48 (1996), no. 1, 3–42. MR 1382474, DOI 10.4153/CJM-1996-001-8
- N. Andruskiewitsch and J. Devoto, Extensions of Hopf algebras, Algebra i Analiz 7 (1995), no. 1, 22–61; English transl., St. Petersburg Math. J. 7 (1996), no. 1, 17–52. MR 1334152
- N. Andruskiewitsch and M. Müller, Examples of extensions of Hopf algebras, in preparation.
- Robert J. Blattner and Susan Montgomery, Crossed products and Galois extensions of Hopf algebras, Pacific J. Math. 137 (1989), no. 1, 37–54. MR 983327
- César Galindo and Sonia Natale, Simple Hopf algebras and deformations of finite groups, Math. Res. Lett. 14 (2007), no. 6, 943–954. MR 2357466, DOI 10.4310/MRL.2007.v14.n6.a4
- George Lusztig, Quantum groups at roots of $1$, Geom. Dedicata 35 (1990), no. 1-3, 89–113. MR 1066560, DOI 10.1007/BF00147341
- Akira Masuoka, On Hopf algebras with cocommutative coradicals, J. Algebra 144 (1991), no. 2, 451–466. MR 1140616, DOI 10.1016/0021-8693(91)90116-P
- Akira Masuoka, Quotient theory of Hopf algebras, Advances in Hopf algebras (Chicago, IL, 1992) Lecture Notes in Pure and Appl. Math., vol. 158, Dekker, New York, 1994, pp. 107–133. MR 1289423
- Akira Masuoka, Hopf algebra extensions and cohomology, New directions in Hopf algebras, Math. Sci. Res. Inst. Publ., vol. 43, Cambridge Univ. Press, Cambridge, 2002, pp. 167–209. MR 1913439
- Susan Montgomery and S. J. Witherspoon, Irreducible representations of crossed products, J. Pure Appl. Algebra 129 (1998), no. 3, 315–326. MR 1631261, DOI 10.1016/S0022-4049(97)00077-7
- Warren D. Nichols and M. Bettina Zoeller, A Hopf algebra freeness theorem, Amer. J. Math. 111 (1989), no. 2, 381–385. MR 987762, DOI 10.2307/2374514
- D. J. S. Robinson, A course in the theory of groups, 2nd ed. Graduate Texts in Mathematics 80, Springer-Verlag, New York, 1995.
- Serge Skryabin, Projectivity and freeness over comodule algebras, Trans. Amer. Math. Soc. 359 (2007), no. 6, 2597–2623. MR 2286047, DOI 10.1090/S0002-9947-07-03979-7
- Hans-Jürgen Schneider, Normal basis and transitivity of crossed products for Hopf algebras, J. Algebra 152 (1992), no. 2, 289–312. MR 1194305, DOI 10.1016/0021-8693(92)90034-J
- Hans-Jürgen Schneider, Some remarks on exact sequences of quantum groups, Comm. Algebra 21 (1993), no. 9, 3337–3357. MR 1228767, DOI 10.1080/00927879308824733
- Mitsuhiro Takeuchi, A correspondence between Hopf ideals and sub-Hopf algebras, Manuscripta Math. 7 (1972), 251–270. MR 321963, DOI 10.1007/BF01579722
- Mitsuhiro Takeuchi, Relative Hopf modules—equivalences and freeness criteria, J. Algebra 60 (1979), no. 2, 452–471. MR 549940, DOI 10.1016/0021-8693(79)90093-0
- Mitsuhiro Takeuchi, Quotient spaces for Hopf algebras, Comm. Algebra 22 (1994), no. 7, 2503–2523. MR 1271619, DOI 10.1080/00927879408824973
Additional Information
- Sonia Natale
- Affiliation: Facultad de Matemática, Astronomía y Física, Universidad Nacional de Córdoba, CIEM – CONICET, (5000) Ciudad Universitaria, Córdoba, Argentina
- MR Author ID: 623157
- Email: natale@famaf.unc.edu.ar
- Received by editor(s): July 10, 2014
- Received by editor(s) in revised form: November 6, 2014
- Published electronically: April 14, 2015
- Additional Notes: This work was partially supported by CONICET, Secyt (UNC) and the Alexander von Humboldt Foundation
- Communicated by: Kailash C. Misra
- © Copyright 2015 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 143 (2015), 5195-5211
- MSC (2010): Primary 16T05; Secondary 17B37
- DOI: https://doi.org/10.1090/proc/12702
- MathSciNet review: 3411137