Semi-invariants of quivers and their zero sets

  • Grzegorz Bobiński

    Nicolaus Copernicus University, Torun, Poland
  • Christine Riedtmann

    Universität Bern, Switzerland
  • Andrzej Skowroński

    Nicolaus Copernicus University, Torun, Poland
Semi-invariants of quivers and their zero sets cover
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Abstract

We survey old and new results on semi-invariant polynomial functions on affine varieties of quivers with respect to conjugate actions of products of general linear groups over an algebraically closed field and the geometry of the sets of common zeros of the nonconstant semi-invariants.