| The universal cover of an algebra without double bypass (2005) | |||||||||||||||||
Abstract | |||||||||||||||||
| Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a Galois covering which satisfies a universal property with respect to the Galois coverings of A. This universal property is similar to the one of the universal cover of a connected topological space. | |||||||||||||||||
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