Galois orders of symmetric differential operators

In this survey we discuss the theory of Galois rings and orders developed in ([20], [22]) by Sergey Ovsienko and the first author. This concept allows to unify the representation theories of Generalized Weyl Algebras ([4]) and of the universal enveloping algebras of Lie algebras. It also had an impa...

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Bibliographic Details
Date:2017
Main Authors: Futorny, Vyacheslav, Schwarz, João
Format: Article
Language:English
Published: Lugansk National Taras Shevchenko University 2017
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Online Access:https://admjournal.luguniv.edu.ua/index.php/adm/article/view/442
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Journal Title:Algebra and Discrete Mathematics

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Algebra and Discrete Mathematics
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Summary:In this survey we discuss the theory of Galois rings and orders developed in ([20], [22]) by Sergey Ovsienko and the first author. This concept allows to unify the representation theories of Generalized Weyl Algebras ([4]) and of the universal enveloping algebras of Lie algebras. It also had an impact on the structure theory of algebras.In particular, this abstract framework has provided a new proof of the Gelfand-Kirillov Conjecture ([24]) in the classical and the quantum case for \(gl_n\) and \(sl_n\) in~[18] and~[21], respectively.We will give a detailed proof of the Gelfand-Kirillov Conjecture in the classical case and show that the algebra of symmetric differential operators has a structure of a Galois order.