On the representation type of one point extensions of tame concealed algebras
- Cite this article as:
- de la Peña, J.A. Manuscripta Math (1988) 61: 183. doi:10.1007/BF01259327
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Letk be an algebraically closed field and Λ a finite dimensionalk-algebra. LetqΛ be the quadratic Tits form associated with Λ. If Λ is tame we show thatqΛ is weakly semipositive. Let Λ be a one-point extension of a tame concealed algebra, then Λ is tame iffqΛ is weakly semipositive.