Geodesic
Degenerations in the module varieties of almost cyclic coherent Auslander–Reiten components
Piotr Malicki1
1 Faculty of Mathematics and Computer Science Nicolaus Copernicus University Chopina 12/18 87-100 Toruń, Poland
Colloquium Mathematicum, Tome 114 (2009) no. 2, pp. 253-276.

Voir la notice de l'article provenant de la source Institute of Mathematics Polish Academy of Sciences

We establish when the partial orders $\leq_{\rm ext}$ and $\leq_{\rm deg }$ coincide for all modules of the same dimension from the additive category of a generalized standard almost cyclic coherent component of the Auslander–Reiten quiver of a finite-dimensional algebra.
DOI : 10.4064/cm114-2-8
Keywords: establish partial orders leq ext leq deg coincide modules dimension additive category generalized standard almost cyclic coherent component auslander reiten quiver finite dimensional algebra

Piotr Malicki 1

1 Faculty of Mathematics and Computer Science Nicolaus Copernicus University Chopina 12/18 87-100 Toruń, Poland 
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Piotr Malicki. Degenerations in the module varieties of  almost cyclic
 coherent Auslander–Reiten components. Colloquium Mathematicum, Tome 114 (2009) no. 2, pp. 253-276. doi : 10.4064/cm114-2-8. http://geodesic.mathdoc.fr/articles/10.4064/cm114-2-8/

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