Infinite Length Modules

Henning Krause, Claus M. Ringel (Herausgeber)

Buch | Softcover

IX, 439 Seiten

2012 | 1. Softcover reprint of the original 1st ed. 2000
Springer Basel (Verlag)
978-3-0348-9562-0 (ISBN)

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This volume presents the invited lectures of a conference devoted to Infinite Length Modules, held at Bielefeld, September 7-11, 1998. Some additional surveys have been included in order to establish a unified picture. The scientific organization of the conference was in the hands of K. Brown (Glasgow), P. M. Cohn (London), I. Reiten (Trondheim) and C. M. Ringel (Bielefeld). The conference was concerned with the role played by modules of infinite length when dealing with problems in the representation theory of algebras. The investi gation of such modules always relies on information concerning modules of finite length, for example simple modules and their possible extensions. But the converse is also true: recent developments in representation theory indicate that a full un derstanding of the category of finite dimensional modules, even over a finite dimen sional algebra, requires consideration of infinite dimensional, thus infinite length, modules. For instance, the important notion of tameness uses one-parameter fami lies of modules, or, alternatively, generic modules and they are of infinite length. If one tries to exhibit a presentation of a module category, it turns out to be essential to take into account the indecomposable modules which are algebraically compact, or, equivalently, pure injective. Specific methods have been developed over the last few years dealing with such special situations as group algebras of finite groups or noetherian rings, and there are surprising relations to topology and geometry. The conference outlined the present state of the art.

Henning Krause studierte Physik in Göttingen und Geschichte der Naturwissenschaften in Hamburg. Er arbeitet als Online-Redakteur und Manager des DLR-Web -Portals.

Infinite length modules. Some Examples as Introduction.- Modules with strange decomposition properties.- Failure of the Krull-Schmidt theorem for artinian modules and serial modules.- Artinian modules over a matrix ring.- Some combinatorial principles for solving algebraic problems.- Dimension theory of noetherian rings.- Krull, Gelfand-Kirillov, Filter, Faithful and Schur dimensions.- Cohen-Macaulay modules and approximations.- The generic representation theory of finite fields A survey of basic structures.- On artinian objects in the category of functors between$${{mathbb{F}}_{2}}$$-vector spaces.- Unstable modules over the Steenrod algebra, functors, and the cohomology of spaces.- Infinite dimensional modules for finite groups.- Bousfield localization for representation theoretists.- The thick subcategory generated by the trivial module.- Birational classification of moduli spaces.- Tame algebras and degenerations of modules.- On some tame and discrete families of modules.- Purity, algebraic compactness, direct sum decompositions, and representation type.- Topological and geometrical aspects of the Ziegler spectrum.- Finite versus infinite dimensional representations A new definition of tameness.- Invariance of tameness under stable equivalence:Krause's theorem.- The Krull-Gabriel dimension of an algebra Open problems and conjectures.- Homological differences between finite and infinite dimensional representations of algebras.

Erscheint lt. Verlag	29.10.2012
Reihe/Serie	Trends in Mathematics
Zusatzinfo	IX, 439 p.
Verlagsort	Basel
Sprache	englisch
Maße	155 x 235 mm
Gewicht	688 g
Themenwelt	Mathematik / Informatik ► Mathematik ► Algebra
Schlagworte	Addition • Algebra • cohomology • Compactness • Development • Finite • finite group • Homology • Knowledge • Matrix • Microsoft Access • Representation Theory • Ring • Topology • Volume
ISBN-10	3-0348-9562-3 / 3034895623
ISBN-13	978-3-0348-9562-0 / 9783034895620
Zustand	Neuware