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Article Contents

ABSTRACT

1.INTRODUCTION

2.THE LUMINOSITY FUNCTION OF GALAXIES

2.1.Low luminosity galaxies

2.2.Disk galaxies

2.3.Spheroidal galaxies

3.THE AGN-STAR FORMATION CONNECTION

3.1.Its not SN, its not AGN: maybe its both!

3.2.Triggering is observed

3.3.The role of AGN at high z

4.STAR FORMATION AND GAS ACCRETION

4.1.Galaxies downsize

4.2.Semi-analytical models of galaxy formation

5.SUMMARY

REFERENCES