Abstract
Standard modules over quasi-hereditary algebras are by definition certain quotients of projective modules.
In this article, we study when they can be realized as submodules of projective modules, a property enjoyed by Verma modules in the BGG category
Dedicated to Professor Steffen Koenig on the occasion of his 60th birthday
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 12171457
Award Identifier / Grant number: 12431002
Funding source: National Key Research and Development Program of China
Award Identifier / Grant number: 2020YFA0712600
Funding statement: The first author is supported by the National Key Research and Development Program of China (2020YFA0712600) and the National Natural Science Foundation of China (12171457), and the second author is supported by the National Natural Science Foundation of China (12431002).
Acknowledgements
The authors are grateful to the referee for all valuable suggestions.
References
[1] F. W. Anderson and K. R. Fuller, Rings and Categories of Modules, Grad. Texts in Math. 13, Springer, New York, 1992. 10.1007/978-1-4612-4418-9Search in Google Scholar
[2] M. Auslander and M. Bridger, Stable Module Theory, Mem. Amer. Math. Soc. 94, American Mathematical Society, Providence, 1969. 10.1090/memo/0094Search in Google Scholar
[3] M. Auslander, I. Reiten and S. O. Smalø, Representation Theory of Artin Algebras, Cambridge Stud. Adv. Math. 36, Cambridge University, Cambridge, 1995. 10.1017/CBO9780511623608Search in Google Scholar
[4] C. Bowman and S. Martin, A reciprocity result for projective indecomposable modules of cellular algebras and BGG algebras, J. Lie Theory 22 (2012), no. 4, 1065–1073. Search in Google Scholar
[5] J. Chuang and K. M. Tan, Representations of wreath products of algebras, Math. Proc. Cambridge Philos. Soc. 135 (2003), no. 3, 395–411. 10.1017/S0305004103006984Search in Google Scholar
[6] E. Cline, B. Parshall and L. Scott, Finite-dimensional algebras and highest weight categories, J. Reine Angew. Math. 391 (1988), 85–99. 10.1515/crll.1988.391.85Search in Google Scholar
[7] B. M. Deng and C. C. Xi, Quasi-hereditary algebras which are dual extensions of algebras, Comm. Algebra 22 (1994), no. 12, 4717–4735. 10.1080/00927879408825097Search in Google Scholar
[8] B. M. Deng and C. C. Xi, Quasi-hereditary algebras which are twisted double incidence algebras of posets, Beitr. Algebra Geom. 36 (1995), no. 1, 37–71. Search in Google Scholar
[9]
D. I. Deriziotis,
The submodule structure of Weyl modules for groups of type
[10] R. Dipper and G. James, q-tensor space and q-Weyl modules, Trans. Amer. Math. Soc. 327 (1991), no. 1, 251–282. 10.1090/S0002-9947-1991-1012527-1Search in Google Scholar
[11] V. Dlab and C. M. Ringel, Quasi-hereditary algebras, Illinois J. Math. 33 (1989), no. 2, 280–291. 10.1215/ijm/1255988725Search in Google Scholar
[12] V. Dlab and C. M. Ringel, The module theoretical approach to quasi-hereditary algebras, Representations of Algebras and Related Topics, London Math. Soc. Lecture Note Ser. 168, Cambridge University, Cambridge (1992), 200–224. 10.1017/CBO9780511661853.007Search in Google Scholar
[13] S. Donkin, On Schur algebras and related algebras. IV. The blocks of the Schur algebras, J. Algebra 168 (1994), no. 2, 400–429. 10.1006/jabr.1994.1236Search in Google Scholar
[14] S. Donkin, The q-Schur Algebra, London Math. Soc. Lecture Note Ser. 253, Cambridge University, Cambridge, 1998. 10.1017/CBO9780511600708Search in Google Scholar
[15] S. Donkin and I. Reiten, On Schur algebras and related algebras. V. Some quasi-hereditary algebras of finite type, J. Pure Appl. Algebra 97 (1994), no. 2, 117–134. 10.1016/0022-4049(94)90056-6Search in Google Scholar
[16] S. R. Doty, K. Erdmann, S. Martin and D. K. Nakano, Representation type of Schur algebras, Math. Z. 232 (1999), no. 1, 137–182. 10.1007/PL00004755Search in Google Scholar
[17] K. Erdmann, Schur algebras of finite type, Quart. J. Math. Oxford Ser. (2) 44 (1993), no. 173, 17–41. 10.1093/qmath/44.1.17Search in Google Scholar
[18] K. Erdmann and A. Henke, On Ringel duality for Schur algebras, Math. Proc. Cambridge Philos. Soc. 132 (2002), no. 1, 97–116. 10.1017/S0305004101005485Search in Google Scholar
[19] K. Erdmann and D. K. Nakano, Representation type of q-Schur algebras, Trans. Amer. Math. Soc. 353 (2001), no. 12, 4729–4756. 10.1090/S0002-9947-01-02849-5Search in Google Scholar
[20] M. Fang, Permanents, Doty coalgebras and dominant dimension of Schur algebras, Adv. Math. 264 (2014), 155–182. 10.1016/j.aim.2014.07.005Search in Google Scholar
[21] M. Fang and S. Koenig, Schur functors and dominant dimension, Trans. Amer. Math. Soc. 363 (2011), no. 3, 1555–1576. 10.1090/S0002-9947-2010-05177-3Search in Google Scholar
[22] M. Fang and H. Miyachi, Hochschild cohomology and dominant dimension, Trans. Amer. Math. Soc. 371 (2019), no. 8, 5267–5292. 10.1090/tran/7704Search in Google Scholar
[23] D. J. Hemmer and D. K. Nakano, Specht filtrations for Hecke algebras of type A, J. Lond. Math. Soc. (2) 69 (2004), no. 3, 623–638. 10.1112/S0024610704005186Search in Google Scholar
[24]
J. E. Humphreys,
Representations of Semisimple Lie Algebras in the BGG Category
[25] R. S. Irving, BGG algebras and the BGG reciprocity principle, J. Algebra 135 (1990), no. 2, 363–380. 10.1016/0021-8693(90)90294-XSearch in Google Scholar
[26] G. D. James, The decomposition of tensors over fields of prime characteristic, Math. Z. 172 (1980), no. 2, 161–178. 10.1007/BF01182401Search in Google Scholar
[27]
S. Koenig, J. Külshammer and S. Ovsienko,
Quasi-hereditary algebras, exact Borel subalgebras,
[28] S. König, Exact Borel subalgebras of quasi-hereditary algebras. I, Math. Z. 220 (1995), no. 3, 399–426. 10.1007/BF02572622Search in Google Scholar
[29] S. König, Exact Borel subalgebras of quasi-hereditary algebras. II, Comm. Algebra 23 (1995), no. 6, 2331–2344. 10.1080/00927879508825348Search in Google Scholar
[30] S. König, On the global dimension of quasi-hereditary algebras with triangular decomposition, Proc. Amer. Math. Soc. 124 (1996), no. 7, 1993–1999. 10.1090/S0002-9939-96-03549-6Search in Google Scholar
[31] R. Marczinzik, Simple reflexive modules over Artin algebras, J. Algebra Appl. 18 (2019), no. 10, Article ID 1950193. 10.1142/S0219498819501937Search in Google Scholar
[32] V. Mazorchuk and S. Ovsienko, Finitistic dimension of properly stratified algebras, Adv. Math. 186 (2004), no. 1, 251–265. 10.1016/j.aim.2003.08.001Search in Google Scholar
[33] C. M. Ringel, The category of modules with good filtrations over a quasi-hereditary algebra has almost split sequences, Math. Z. 208 (1991), no. 2, 209–223. 10.1007/BF02571521Search in Google Scholar
[34] C. M. Ringel, Simple reflexive modules over finite-dimensional algebras, J. Algebra Appl. 20 (2021), no. 9, Article ID 2150166. 10.1142/S0219498821501668Search in Google Scholar
[35] J. J. Rotman, An Introduction to Homological Algebra, 2nd ed., Universitext, Springer, New York, 2008. 10.1007/b98977Search in Google Scholar
[36] R. Rouquier, q-Schur algebras and complex reflection groups, Mosc. Math. J. 8 (2008), no. 1, 119–158, 184. 10.17323/1609-4514-2008-8-1-119-158Search in Google Scholar
[37]
H. Tachikawa,
Quasi-Frobenius Rings and Generalizations.
[38] C. Wang and C. Xi, Finitistic dimension conjecture and radical-power extensions, J. Pure Appl. Algebra 221 (2017), no. 4, 832–846. 10.1016/j.jpaa.2016.08.006Search in Google Scholar
[39] Q. Wang, On τ-tilting finiteness of the Schur algebra, J. Pure Appl. Algebra 226 (2022), no. 1, Article ID 106818. 10.1016/j.jpaa.2021.106818Search in Google Scholar
[40] C. C. Xi, Quasi-hereditary algebras with a duality, J. Reine Angew. Math. 449 (1994), 201–215. 10.1515/crll.1994.449.201Search in Google Scholar
© 2025 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Weil representations of twisted loop groups of type A n (2)
- Local Birkhoff decompositions for loop groups and a finiteness result
- Uniform boundedness of oscillatory singular integrals with rational phases
- On the stabilizer of the graph of linear functions over finite fields
- Global solution and blow-up of critical heat equation with nonlocal interaction
- Locally compact groups with all dense subgroups separable
- On the Kawaguchi–Silverman conjecture for birational automorphisms of irregular varieties
- On isometry groups of gradient Ricci solitons
- Extensions of a theorem of P. Hall on indexes of maximal subgroups
- A trace formula for Hecke operators on Fuchsian groups
- Quasi-hereditary algebras with all standard modules being isomorphic to submodules of projective modules
- Computation of endo-fixed closures in free-abelian times free groups
- Non-vanishing of Maass form 𝐿-functions of cubic level at the central point
- Traces of partition Eisenstein series
- Gabor System based on the unitary dual of the Heisenberg group
- Zeros of linear combinations of Dirichlet 𝐿-functions on the critical line
- Paley inequality for the Weyl transform and its applications
Articles in the same Issue
- Frontmatter
- Weil representations of twisted loop groups of type A n (2)
- Local Birkhoff decompositions for loop groups and a finiteness result
- Uniform boundedness of oscillatory singular integrals with rational phases
- On the stabilizer of the graph of linear functions over finite fields
- Global solution and blow-up of critical heat equation with nonlocal interaction
- Locally compact groups with all dense subgroups separable
- On the Kawaguchi–Silverman conjecture for birational automorphisms of irregular varieties
- On isometry groups of gradient Ricci solitons
- Extensions of a theorem of P. Hall on indexes of maximal subgroups
- A trace formula for Hecke operators on Fuchsian groups
- Quasi-hereditary algebras with all standard modules being isomorphic to submodules of projective modules
- Computation of endo-fixed closures in free-abelian times free groups
- Non-vanishing of Maass form 𝐿-functions of cubic level at the central point
- Traces of partition Eisenstein series
- Gabor System based on the unitary dual of the Heisenberg group
- Zeros of linear combinations of Dirichlet 𝐿-functions on the critical line
- Paley inequality for the Weyl transform and its applications