Facchini alberto (194 résultats)

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Hardcover. Etat : Sehr gut. Basel, Birkhäuser (1998). gr.8°. XIII, 285 p. Hardbound. (back slightly faded, otherwise in very good condition).- Progress in Mathematics, 167.-.

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Paperback. Etat : New. Thisexpositorymonographwaswrittenforthreereasons. Firstly,wewantedto present the solution to a problem posed by Wolfgang Krull in 1932 [Krull 32]. He asked whether what we now call the "Krull-SchmidtTheorem" holds for - tinianmodules. Theproblemremainedopenfor63years:itssolution,anegative answer to Krull's question, was published only in 1995 (see [Facchini, Herbera, Levy and Vamos]). ' Secondly, we wanted to present the answer to a question posed by War?eld in 1975 [War?eld 75]. He proved that every ?nitely p- sented module over a serial ring is a direct sum of uniserial modules, and asked if such a decomposition was unique. In other words, War?eld asked whether the "Krull-Schmidt Theorem" holds for serial modules. The solution to this problem, a negative answer again, appeared in [Facchini 96]. Thirdly, the - lution to War?eld's problem shows interesting behavior, a rare phenomenon in the history of Krull-Schmidt type theorems. Essentially, the Krull-Schmidt Theorem holds for some classes of modules and not for others.When it does hold, any two indecomposable decompositions are uniquely determined up to a permutation, and when it does not hold for a class of modules, this is proved via an example. For serial modules the Krull-Schmidt Theorem does not hold, but any two indecomposable decompositions are uniquely determined up to two permutations. We wanted to present such a phenomenon to a wider ma- ematical audience. …

Hardcover. Etat : Sehr gut. Proceedings of the Padova Conference, Padova, Italy, June 23 - July 1, 1994. Dordrecht, Kluwer (1995). gr.8°. XX, 517 p. Hardbound. (corners slightly bumped, otherwise in very good condition).- Mathematics and its Applications, 343.- Dedicated to Lazslo Fuchs on his 70th Birthday.…

Etat : New. 1st ed. 2021 edition NO-PA16APR2015-KAP.

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Paperback. Etat : Brand New. 269 pages. 9.25x6.10x0.83 inches. In Stock.

Taschenbuch. Etat : Neu. Druck auf Anfrage Neuware - Printed after ordering - This book provides an introduction to some key subjects in algebra and topology. It consists of comprehensive texts of some hours courses on the preliminaries for several advanced theories in (categorical) algebra and topology. Often, this kind of presentations is not so easy to find in the literature, where one begins articles by assuming a lot of knowledge in the field. This volume can both help young researchers to quickly get into the subject by offering a kind of «roadmap» and also help master students to be aware of the basics of other research directions in these fields before deciding to specialize in one of them. Furthermore, it can be used by established researchers who need a particular result for their own research and do not want to go through several research papers in order to understand a single proof.Although the chapters can be read as «self-contained» chapters, the authors have tried to coordinatethe texts in order to make them complementary. The seven chapters of this volume correspond to the seven courses taught in two Summer Schools that took place in Louvain-la-Neuve in the frame of the project Fonds d'Appui à l'Internationalisation of the Université catholique de Louvain to strengthen the collaborations with the universities of Coimbra, Padova and Poitiers, within the Coimbra Group.…

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Paperback. Etat : Brand New. 229 pages. 9.25x6.10x9.25 inches. In Stock.

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