A = {{0.0, 0.0, 0.0, 0.0, 0.0, 0.0},
    {0.0, 1.9247225877689356, -1.9247225877689356, -0.96236129388446778, 0.0, 0.96236129388446778 },
    {0.0, -1.9247225877689356, 1.9247225877689356, 0.96236129388446778, 0.0, -0.96236129388446778},
    {0.0, -0.96236129388446778, 0.96236129388446778, 0.48118064694223389, 0.0, -0.48118064694223389},
    {0.0, 0.0, 0.0, 0.0, 0.0, 0.0},
    {0.0, 0.96236129388446778, -0.96236129388446778, -0.48118064694223389, 0.0, 0.48118064694223389}
  };
B = {{0.0, 0.0, 0.0, 0.0, 0.0, 0.0},
    {0.0, 0.046728852764308028, -0.046728852764308028, -0.023364426382154014, 0.0, 0.023364426382154014},
    {0.0, -0.046728852764308028, 0.046728852764308028, 0.023364426382154014, 0.0, -0.023364426382154014 },
    {0.0, -0.023364426382154014, 0.023364426382154014, 0.011682213191077007, 0.0, -0.011682213191077007 },
    {0.0, 0.0, 0.0, 0.0, 0.0, 0.0},
    {0.0, 0.023364426382154014, -0.023364426382154014, -0.011682213191077007, 0.0, 0.011682213191077007 }
  };
  
  Eigenvalues[{A,B}]
Eigenvalues[B]
Eigenvalues[A]