1. INTRODUCTION

2. OBSERVATIONAL DATA AND SOURCE DETECTION

3. ANALYSIS
3.1. Estimate of redshift and stellar mass
3.2. Stellar mass-limited sample
3.3. Deriving the stellar mass function
3.4. Evolution of the stellar mass function

4. DISCUSSION
4.1. Comparison with previous studies
4.2. Mass-dependent evolution of galaxies
4.3. The origin of the evolution of the low-mass slope

5. SUMMARY