Contents

1 Introduction

2 Samples of galaxies from the SDSS DR7
2.1 Volume-limited samples of galaxies
2.2 Choice of coordinates

3 Multi fractal analysis

4 Procedure and Results
4.1 Selection of volume-limited samples
4.2 Homogeneity scale
4.3 Values of v₀ for our volume-limited samples
4.4 Coarsening the volume-limited samples
4.5 Multi fractal spectrum