Keywords: galaxies: high-redshift, galaxies: active–quasars, galaxies: luminosity function

1. INTRODUCTION

2. DATA REDUCTION AND PHOTOMETRY
2.1. Overview of Dataset
2.2. DECam Data Reduction and Photometric Calibration
2.3. DECam Photometry
2.4. DECam Photometric Errors
2.5. IRAC data reduction and photometry

3. SAMPLE SELECTION
3.1. Photometric Redshifts and Selection Criteria
3.2. Identifying Contamination
3.3. Estimating Contamination Using Dimmed Real Sources

4. RESULTS
4.1. The Rest-Frame UV L=4 Luminosity Function
4.2. Fitting the Luminosity Function
4.3. A Sample of Spectroscopically Confirmed AGNs

5. DISCUSSION
5.1. Comparison to z=4 Galaxy Studies
5.2. Comparison to z=4 AGN Studies
5.3. Comparing Predictions of Our Two Fits - Is the UV luminosity function a double power law?
5.4. Rest-Frame UV Emissivities

6. CONCLUSIONS