Skip to main content
Log in

Generic Extensions of Prinjective Modules

  • Published:
Algebras and Representation Theory Aims and scope Submit manuscript

Abstract

Let \(K\) be an algebraically closed field and let \(I\) be a finite partially ordered set of finite prinjective type. We study generic extensions of prinjective modules over the incidence \(K\)-algebra \(KI\) of \(I\). We prove that there exist generic extensions of prinjective \(KI\)-modules and describe properties of the monoid \({\user1{\mathcal{M}}}{\left( I \right)}\) of generic extensions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Arnold, D.M.: Representations of partially ordered sets and abelian groups. Contemp. Math. 87, 91–109 (1989)

    MATH  Google Scholar 

  2. Bongartz, K.: Algebras and quadratic forms. J. London Math. Soc. 28, 461–469 (1983)

    MATH  MathSciNet  Google Scholar 

  3. Bongartz, K.: Minimal singularities for representations of Dynkin quivers. Comment. Math. Helv. 69, 575–611 (1994)

    MATH  MathSciNet  Google Scholar 

  4. Bongartz, K.: On degenerations and extentions of finite dimensional modules. Adv. Math. 121, 245–287 (1996)

    Article  MATH  MathSciNet  Google Scholar 

  5. Bongartz, K.: Some geometry aspects of representation theory. Algebras and modules, I (Trondheim, 1996), 1-27, CMS Conf. Proc. 23. Amer. Math. Soc., Providence, Rhode Island, (1998)

  6. Dräxler, P.: Auslander-Reiten quivers of algebras whose indecomposable modules are bricks. Bull. London Math. Soc. 23, 141–145 (1993)

    Google Scholar 

  7. Kasjan, S., Simson, D.: Varieties of posets representations and minimal posets of wild prinjective type, CMS. Conf. Proc. 14, 245–284 (1993)

    MATH  MathSciNet  Google Scholar 

  8. Kosakowska, J.: Degenerations in a class of matrix varieties and prinjective modules. J. Algebra 263, 262–277 (2003)

    Article  MATH  MathSciNet  Google Scholar 

  9. Kosakowska, J., Simson, D.: On Tits form and prinjective representations of posets of finite prinjective type. Comm. Algebra 26, 1613–1623 (1998)

    MATH  MathSciNet  Google Scholar 

  10. Kraft, H.: Geometric methods in representation theory. In: Representations of Algebras. Workshop Proceedings, Puebla, Mexico (1980). Lecture Notes in Mathematics, Vol. 944. Springer, Berlin Heilderberg New York, (1982)

  11. Nazarova L.A., Roiter, A.V.: Representations of partially ordered sets. In Zap. Nauchn. Sem. Leningrad. Otdel. Mat. Inst. Steklov. (LOMI) 28, 5–31 (1972) (in Russian)

  12. de la Peña J.A., Simson, D.: Prinjective modules, reflection functors, quadratic forms and Auslander-Reiten sequences. Trans. Amer. Math. Soc. 329, 733–753 (1992)

    Article  MATH  MathSciNet  Google Scholar 

  13. Reineke, M.: Hall-Algebren, Quantengruppen und Lusztigs kanonische Basis. Diplomarbeit, Bergische Universität – Gesamthochschule Wuppertal, 1993/94

  14. Reineke, M.: Generic extensions and multiplicative bases of quantum groups at \(q=0\). J. Amer. Math. Soc. 5, 147–163 (2001)

    MATH  MathSciNet  Google Scholar 

  15. Ringel, C.M.: Tame algebras and integral quadratic forms. Lecture Notes in Mathematics, Vol. 1099, Springer, Berlin Heidelberg New York, (1984)

  16. Ringel, C.M.: Hall algebras and quantum groups. Invent. Math 101, 583–592 (1990)

    Article  MATH  MathSciNet  Google Scholar 

  17. Simson, D.: Linear representations of partially ordered sets and vector space categories. Algebra, Logic and Applications, Vol. 4, Gordon & Breach Science, London (1992)

    Google Scholar 

  18. Simson, D.: Posets of finite prinjective type and a class of orders. J. Pure Appl. Algebra 90, 71–103 (1993)

    Article  MathSciNet  Google Scholar 

  19. Simson, D.: A reduction functor, tameness and Tits form for a class of orders. J. Algebra 174, 430–452 (1995)

    Article  MATH  MathSciNet  Google Scholar 

  20. Simson, D.: Representation types, Tits reduced quadratic forms and orbit problems for lattices over orders. In: Trends in Representation Theory of Finite Dimensional Algebras (Seattle, 1997), Contemp. Math. 229, pp. 307–342. Amer. Math. Soc. (1998)

  21. Simson, D.: Cohen-Macaulay modules over classical orders. In: Interactions between Ring Theory and Representations of Algebras (Murcia, 1998), Lecture Notes in Pure and Appl. Math., pp. 345–382. Marcel Dekker, New York, (2000)

  22. Skowroński, A.: Group algebras of polynomial growth. Manuscripta. Math. 59, 499–516 (1994)

    Article  Google Scholar 

  23. Vossieck, D.: Représentations de bifoncteurs et interprétations en termes de modules. C. R. Acad. Sci. Paris, Série I 307, 713–716 (1988)

    MATH  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Justyna Kosakowska.

Additional information

Partially supported by Polish KBN Grant 5 P0 3A 015 21.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kosakowska, J. Generic Extensions of Prinjective Modules. Algebr Represent Theor 9, 557–568 (2006). https://doi.org/10.1007/s10468-006-9033-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10468-006-9033-2

Mathematics Subject Classifications (2000)

Key words

Navigation