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The universal cover of a monomial triangular algebra without multiple arrows

Patrick Le Meur
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Abstract

Let A be a basic connected finite dimensional algebra over an algebraically closed field k. Assuming that A is monomial and that the ordinary quiver Q of A has no oriented cycle and no multiple arrows, we prove that A admits a universal cover with group the fundamental group of the underlying space of Q.

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Patrick Le Meur. 2008-03-06. The universal cover of a monomial triangular algebra without multiple arrows. https://doi.org/10.1142/s0219498808002850

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