The Representation Type of Algebras and Subalgebras

1958 ◽  
Vol 10 ◽  
pp. 39-44 ◽  
Author(s):  
J. P. Jans

For A an associative algebra with identity over a field K, [A : K] < ∞, and d an integer, we define g Λ(d) to be the number of inequivalent indecomposable Λ-modules of degree d over K. Following (6), we define Λ to be of finite representation type if . Λis said to be of bounded representation type if there exists d 0 such that g Λ(d) = 0 for d ⩾ d 0; Λ is of unbounded representation type if not of bounded type.

1995 ◽  
Vol 37 (3) ◽  
pp. 289-302 ◽  
Author(s):  
Allen D. Bell ◽  
K. R. Goodearl

It is well known that for finite dimensional algebras, “bounded representation type” implies “finite representation type”; this is the assertion of the First Brauer-Thrall Conjecture (hereafter referred to as Brauer-Thrall I), proved by Roiter [26] (see also [23]). More precisely, it states that if R is a finite dimensional algebra over a field k, such that there is a finite upper bound on the k-dimensions of the finite dimensional indecomposable right R-modules, then up to isomorphism R has only finitely many (finite dimensional) indecomposable right modules. The hypothesis and conclusion are of course left-right symmetric in this situation, because of the duality between finite dimensional left and right R-modules, given by Homk(−, k). Furthermore, it follows from finite representation type that all indecomposable R modules are finite dimensional [25].


1987 ◽  
Vol 15 (1-2) ◽  
pp. 377-424 ◽  
Author(s):  
Kiyoshi Igusa ◽  
Maria-Ines Platzeck ◽  
Gordana Todorov ◽  
Dan Zachana

Author(s):  
Agustín Moreno Cañadas ◽  
Gabriel Bravo Rios ◽  
Hernán Giraldo

Categorification of some integer sequences are obtained by enumerating the number of sections in the Auslander–Reiten quiver of algebras of finite representation type.


2016 ◽  
Vol 48 (4) ◽  
pp. 589-600
Author(s):  
Jerzy Białkowski ◽  
Andrzej Skowroński

1983 ◽  
Vol 182 (1) ◽  
pp. 129-148 ◽  
Author(s):  
Hagen Meltzer ◽  
Andrzej Skowroński

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