The Luminosity function of Narrow-Line Seyfert galaxies based on SDSS
  DR7 data
  We present measurements of AGN type 1 luminosity function in the forbidden
line [OIII]5007\AA using data from SDSS DR7. A special attention is paid to
NLSy1. A new approach in calculating the luminosity function is present. We
also account for the large-scale structure variations of the Universe density.
The results obtained are compared with ones from the literature. A prediction
of X-ray luminosity function based on our results shows an agreement with
observations. One of our preliminary conclusions is that NLSy1 seems to occupy
a more narrow range in the nuclear luminosity than BLSy1, but the average
values are within errors.
