Representations of algebras : proceedings of the conference held in São Paulo / edited by Flávio Ulhoa Coelho, Héctor A. Merklen.

Format:

Book

Conference/Event

Contributor:

Coelho, Flávio Ulhoa.

Merklen, Héctor A.

Conference Name:

Conference on Representations of Algebras--São Paulo (1999)

Series:

Lecture notes in pure and applied mathematics ; v. 224.

Lecture notes in pure and applied mathematics ; 224

Language:

English

Subjects (All):

Representations of algebras--Congresses.

Representations of algebras.

Genre:

Conference papers and proceedings.

Physical Description:

xvii, 282 pages : illustrations ; 26 cm.

Place of Publication:

New York : Marcel Dekker, [2002]

Summary:

This collection contains proceedings of the Conference on Representations of Algebras-Sao Paulo (CRASP) held at the Instituto de Matematica e Estatistica of the Universidade de Sao Paulo, Brazil, discussing Hopf, tubular, quasischurian, wild hereditary, concealed-canonical Artin, Brauer star, Koszul, and quasitilted algebras -- highlighting selfinjective algebras of euclidean type with almost regular nonperiodic Auslander-Reiten components. Containing papers selected from over 70 participants representing 17 countries, Representations of Algebras considers the existence of almost split morphisms and sequences...describes strongly simply connected derived tubular algebras...explores relationships between Koszul algebras and the Gorenstein condition...characterizes hereditary noetherian categories containing simple objects...details coil algebras whose repetitive algebra is tame...analyzes Hopf algebras...and more.

Contents:

1. On the Existence of Left and Right Almost Split Morphisms / Lidia Angeleri-Hugel 1

2. Actions of Hopf Algebras on Quantum Polynomials / Vyacheslav A. Artamonov 11

3. Strongly Simply Connected Derived Tubular Algebras / Ibrahim Assem 21

4. H[superscript 1] and Presentations of Finite Dimensional Algebras / Michael J. Bardzell, Eduardo N. Marcos 31

5. Tame Tilted Algebras with Almost Regular Connecting Components / Grzegorz Bobinski 39

6. Reflexive Modules Are Not Closed under Submodules / Gabriella D'Este 53

7. Fibre Sum Functors and the Bimodule Ext / Peter Draxler 65

8. Smooth Automorphism Group Schemes / Daniel R. Farkas, Christof Geiss, Eduardo N. Marcos 71

9. A Combinatorial Characterization of Hereditary Categories Containing Simple Objects / Dieter Happel, Idun Reiten 91

10. Symmetric Quasi-Schurian Algebras / Octavio Mendoza Hernandez 99

11. On Lattices at the Ends of Connected Components of the Auslander-Reiten Quiver / Alfredo Jones 117

12. Factorisations of Morphisms for Wild Hereditary Algebras / Otto Kerner 121

13. A Note on Concealed-Canonical Artin Algebras / Dirk Kussin, Zygmunt Pogorzaly 129

14. Koszul Algebras and the Gorenstein Condition / Roberto Martinez-Villa 135

15. Some Remarks about the "Double Extension" Algebra of a Finite Poset / Teresita Noriega 157

16. Coil Algebras that Are Derived-Tame / Jose Antonio de la Pena, Bertha Tome 165

17. One-Point Extensions of Quasitilted Algebras by Modules on Stable Tubes / Jose Antonio de la Pena, Sonia E. Trepode 177

18. Combinatorial Partial Tilting Complexes for the Brauer Star Algebras / Mary Schaps, Evelyne Zakay-Illouz 187

19. Almost Split Sequences in Categories of Representations of Quivers II / Sverre O. Smalo 209

20. Cotilting Objects and Dualities / Robert Wisbauer 215

21. Coherent Components of Auslander-Reiten Quivers whose DTr-Orbits Are Finite / Hailou Yao 235

22. Twisted Hopf Algebras / Pu Zhang, Li-Bin Li 269.

Notes:

Includes bibliographical references and index.

ISBN:

0824707338

OCLC:

48092273