Some infinitely generated non-projective modules over path algebras and their extensions under Martin's axiom
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DOI: 10.2969/jmsj/79857985
Abstract: In this paper it is proved that, when $Q$ is a quiver that admits some closure, for any algebraically closed field $K$ and any finite dimensional $K$-linear representation $\mathcal{X}$ of $Q$, if ${\rm Ext}^1_{KQ}(\mathcal{X},KQ)=0$ then… read more here.
Keywords: martin axiom; projective modules; non projective; infinitely generated ... See more keywords