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.
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Arnold, D.M.: Representations of partially ordered sets and abelian groups. Contemp. Math. 87, 91–109 (1989)
Bongartz, K.: Algebras and quadratic forms. J. London Math. Soc. 28, 461–469 (1983)
Bongartz, K.: Minimal singularities for representations of Dynkin quivers. Comment. Math. Helv. 69, 575–611 (1994)
Bongartz, K.: On degenerations and extentions of finite dimensional modules. Adv. Math. 121, 245–287 (1996)
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)
Dräxler, P.: Auslander-Reiten quivers of algebras whose indecomposable modules are bricks. Bull. London Math. Soc. 23, 141–145 (1993)
Kasjan, S., Simson, D.: Varieties of posets representations and minimal posets of wild prinjective type, CMS. Conf. Proc. 14, 245–284 (1993)
Kosakowska, J.: Degenerations in a class of matrix varieties and prinjective modules. J. Algebra 263, 262–277 (2003)
Kosakowska, J., Simson, D.: On Tits form and prinjective representations of posets of finite prinjective type. Comm. Algebra 26, 1613–1623 (1998)
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)
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)
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)
Reineke, M.: Hall-Algebren, Quantengruppen und Lusztigs kanonische Basis. Diplomarbeit, Bergische Universität – Gesamthochschule Wuppertal, 1993/94
Reineke, M.: Generic extensions and multiplicative bases of quantum groups at \(q=0\). J. Amer. Math. Soc. 5, 147–163 (2001)
Ringel, C.M.: Tame algebras and integral quadratic forms. Lecture Notes in Mathematics, Vol. 1099, Springer, Berlin Heidelberg New York, (1984)
Ringel, C.M.: Hall algebras and quantum groups. Invent. Math 101, 583–592 (1990)
Simson, D.: Linear representations of partially ordered sets and vector space categories. Algebra, Logic and Applications, Vol. 4, Gordon & Breach Science, London (1992)
Simson, D.: Posets of finite prinjective type and a class of orders. J. Pure Appl. Algebra 90, 71–103 (1993)
Simson, D.: A reduction functor, tameness and Tits form for a class of orders. J. Algebra 174, 430–452 (1995)
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)
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)
Skowroński, A.: Group algebras of polynomial growth. Manuscripta. Math. 59, 499–516 (1994)
Vossieck, D.: Représentations de bifoncteurs et interprétations en termes de modules. C. R. Acad. Sci. Paris, Série I 307, 713–716 (1988)
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Partially supported by Polish KBN Grant 5 P0 3A 015 21.
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Kosakowska, J. Generic Extensions of Prinjective Modules. Algebr Represent Theor 9, 557–568 (2006). https://doi.org/10.1007/s10468-006-9033-2
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DOI: https://doi.org/10.1007/s10468-006-9033-2