Non-degenerate Symmetric Invariant Bilinear Forms on the Deformative   Schr\"odinger-Virasoro Algebras
  In the present paper we shall determine all the non-degenerate symmetric invariant bilinear forms on the deformative Schr\"odinger-Virasoro algebras. 
Huanxia Fa, Junbo Li, Linsheng Zhu
math.RA