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Injective Cogenerators, Cotilting Modules and Cosilting Modules

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Abstract

It is well known that the concept of cotilting modules generalizes injective cogenerators and in turn, the concept of cosilting modules generalizes cotilting modules. In this paper, we further investigate the close connections among injective cogenerators, cotilting modules and cosilting modules from the viewpoint of morphism categories. Some applications are also given.

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References

  1. Adachi, T., Iyama, O., Reiten, I.: τ-tilting theory. Compos. Math., 150(3), 415–452 (2014)

    Article  MathSciNet  MATH  Google Scholar 

  2. Angeleri Hügel, L.: Finitely cotilting modules. Comm. Algebra, 28(4), 2147–2172 (2000)

    Article  MathSciNet  MATH  Google Scholar 

  3. Angeleri Hügel, L.: Silting objects. Bull. London Math. Soc., 51(4), 658–690 (2019)

    Article  MathSciNet  MATH  Google Scholar 

  4. Angeleri Hugel, L., Cao, W. Q.: Minimal silting modules and ring extensions. Sci. China Math., 65(9), 1775–1794 (2022)

    Article  MathSciNet  MATH  Google Scholar 

  5. Angeleri Hügel, L., Coelho, F. U.: Infinitely generated tilting modules of finite projective dimension. Forum Math., 13, 239–250 (2001)

    MathSciNet  MATH  Google Scholar 

  6. Angeleri Hügel L., Hrbek, M.: Silting modules over commutative rings. Int. Math. Res. Not., 2017(13), 4131–4151 (2017)

    MathSciNet  MATH  Google Scholar 

  7. Angeleri Hügel, L., Marks, F., Vitória, J.: Silting modules. Int. Math. Res. Not., 4, 1251–1284 (2016)

    Article  MathSciNet  MATH  Google Scholar 

  8. Angeleri Hügel, L., Marks, F., Vitória, J.: Torsion pairs in silting theory. Pacific J. Math., 291(2), 257–278 (2017)

    Article  MathSciNet  MATH  Google Scholar 

  9. Asadollahi, J., Salarian, S.: On the vanishing of Ext over formal triangular matrix rings. Forum Math., 18, 951–966 (2006)

    Article  MathSciNet  MATH  Google Scholar 

  10. Bazzoni, S.: Cotilting modules are pure-injective. Proc. Amer. Math. Soc., 131(12), 3665–3672 (2003)

    Article  MathSciNet  MATH  Google Scholar 

  11. Bazzoni, S.: When are definable classes tilting and cotilting classes? J. Algebra, 320(12), 4281–4299 (2008)

    Article  MathSciNet  MATH  Google Scholar 

  12. Breaz, S.: The ascent-descent property for 2-term silting complexes. Publ. Mat., 64(2), 543–562 (2020)

    Article  MathSciNet  MATH  Google Scholar 

  13. Breaz, S., Pop, F.: Cosilting modules. Algebr. Represent. Theor., 20, 1305–1321 (2017)

    Article  MathSciNet  MATH  Google Scholar 

  14. Breaz, S., Zemlicka, J.: Torsion classes generated by silting modules. Ark. Mat., 56(1), 15–32 (2018)

    Article  MathSciNet  MATH  Google Scholar 

  15. Brenner, S., Butler, M.: Generalizations of the Bernstein–Gelfand–Ponomarev reflection functors, Representation Theory II, Lect. Notes Math., Vol. 832, 103–169 (1980)

    Article  MATH  Google Scholar 

  16. Camillo, V.: Coherence for polynomial rings. J. Algebra, 132(1), 72–76 (1990)

    Article  MathSciNet  MATH  Google Scholar 

  17. Colby, R. R., Fuller, K. R.: Tilting, cotilting and serially tilted rings. Comm. Algebra, 18(5), 1585–1615 (1990)

    Article  MathSciNet  MATH  Google Scholar 

  18. Colby, R. R., Fuller, K. R.: Equivalence and Duality for Module Categories. Cambridge University Press, Cambridge, 2004

    Book  MATH  Google Scholar 

  19. Colpi, R., D’Este, G., Tonolo, A.: Quasi-tilting modules and counter equivalences. J. Algebra, 191(2), 461–494 (1997)

    Article  MathSciNet  MATH  Google Scholar 

  20. Colpi, R., Tonolo, A., Trlifaj, J.: Partial cotilting modules and the lattices induced by them. Comm. Algebra, 25(10), 3225–3237 (1997)

    Article  MathSciNet  MATH  Google Scholar 

  21. Colpi, R., Trlifaj, J.: Tilting modules and tilting torsion theories. J. Algebra, 178(2), 614–634 (1995)

    Article  MathSciNet  MATH  Google Scholar 

  22. Enochs, E. E., Jenda, O. M. G.: Relative Homological Algebra, Walter de Gruyter, Berlin-New York, 2000

    Book  MATH  Google Scholar 

  23. Faith, C.: Algebra II, Ring Theory, Springer-Verlag, Berlin-Heidelberg-New York, 1976

    Book  MATH  Google Scholar 

  24. Gao, H. P., Huang, Z. Y.: Silting modules over triangular matrix rings. Taiwanese J. Math., 24(6), 1417–1437 (2020)

    Article  MathSciNet  MATH  Google Scholar 

  25. Göbel, R., Trlifaj, J.: Approximations and Endomorphism Algebras of Modules, GEM 41, Walter de Gruyter, Berlin-New York, 2006

    Book  MATH  Google Scholar 

  26. Green, E. L.: On the presentation theory of rings in matrix form. Pacific J. Math., 100(1), 123–138 (1982)

    Article  MathSciNet  MATH  Google Scholar 

  27. Haghany A., Varadarajan, K.: Study of formal triangular matrix rings. Comm. Algebra, 27(11), 5507–5525 (1999)

    Article  MathSciNet  MATH  Google Scholar 

  28. Happel, D., Ringel, C.: Tilted algebras. Trans. Amer. Math. Soc., 274(2), 399–443 (1982)

    Article  MathSciNet  MATH  Google Scholar 

  29. Keller, B., Vossieck, D.: Aisles in derived categories. Bull. Belg. Math. Soc. Ser. A, 40(2), 239–253 (1988)

    MathSciNet  MATH  Google Scholar 

  30. Mao, L. X.: Cotorsion pairs and approximation classes over formal triangular matrix rings. J. Pure Appl. Algebra, 224(6), 106271 (21 pages) (2020)

    Article  MathSciNet  MATH  Google Scholar 

  31. Mao, L. X.: The structures of dual modules over formal triangular matrix rings. Publ. Math. Debrecen, 97(3–4), 367–380 (2020)

    Article  MathSciNet  MATH  Google Scholar 

  32. Mao, L. X.: A generalization of silting modules and Tor-tilting modules. Front. Math. China, 17(4), 715–730 (2022)

    Article  MathSciNet  MATH  Google Scholar 

  33. Mao, L. X.: Homological dimensions of special modules over formal triangular matrix rings. J. Algebra Appl., 21(7), 2250146 (14 pages) (2022)

    Article  MathSciNet  MATH  Google Scholar 

  34. Marks, F., Šťovíček, J.: Universal localisations via silting. Proc. Royal Soc. Edinburgh (A), 149(2), 511–532 (2019)

    Article  MathSciNet  MATH  Google Scholar 

  35. Marks, F., Vitória, J.: Silting and cosilting classes in derived categories. J. Algebra, 501(1), 526–544 (2018)

    Article  MathSciNet  MATH  Google Scholar 

  36. Miyashita, Y.: Tilting modules of finite projective dimension. Math. Z., 193, 113–146 (1986)

    Article  MathSciNet  MATH  Google Scholar 

  37. Pop, F.: A note on cosilting modules. J. Algebra Appl., 16(11), 1750218 (11 pages) (2017)

    Article  MathSciNet  MATH  Google Scholar 

  38. Tonolo, A.: Generalizing Morita duality: a homological approach. J. Algebra, 232(1), 282–298 (2000)

    Article  MathSciNet  MATH  Google Scholar 

  39. Wei, J. Q.: Semi-tilting complexes. Israel J. Math., 194(2), 871–893 (2013)

    Article  MathSciNet  MATH  Google Scholar 

  40. Zhang, P. Y., Wei, J. Q.: Cosilting complexes and AIR-cotiling modules. J. Algebra, 491(1), 1–31 (2017)

    Article  MathSciNet  MATH  Google Scholar 

  41. Zhang, P. Y., Wei, J. Q.: Quasi-cotilting modules and hereditary quasi-cotilting modules. Comm. Algebra, 46(4), 1506–1518 (2018)

    Article  MathSciNet  MATH  Google Scholar 

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Acknowledgements

The author wants to express his gratitude to the referee for his/her careful reading of the paper and the very helpful suggestions.

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Correspondence to Li Xin Mao.

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The authors declare no conflict of interest.

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Supported by NSFC (Grant Nos. 12171230, 12271249) and NSF of Jiangsu Province of China (Grant No. BK20211358)

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Mao, L.X. Injective Cogenerators, Cotilting Modules and Cosilting Modules. Acta. Math. Sin.-English Ser. 39, 1684–1700 (2023). https://doi.org/10.1007/s10114-023-1158-2

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  • DOI: https://doi.org/10.1007/s10114-023-1158-2

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