Abstract
We introduce the central idea, that of a Leavitt path algebra. We start by describing the classical Leavitt algebras. We then proceed to give the definition of the Leavitt path algebra L K (E) for an arbitrary directed graph E and field K. After providing some basic examples, we show how Leavitt path algebras are related to the monoid realization algebras of Bergman, as well as to graph C ∗-algebras. We then introduce the more general construction of relative Cohn path algebras C K X(E), and show how these are related to Leavitt path algebras. We finish by describing how any Cohn (specifically, Leavitt) path algebra may be constructed as a direct limit of Cohn (specifically, Leavitt) path algebras corresponding to finite graphs. We conclude the chapter with an historical overview of the subject.
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Abrams, G., Ara, P., Siles Molina, M. (2017). The Basics of Leavitt Path Algebras: Motivations, Definitions and Examples. In: Leavitt Path Algebras. Lecture Notes in Mathematics, vol 2191. Springer, London. https://doi.org/10.1007/978-1-4471-7344-1_1
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