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Article Contents

ABSTRACT

1.INTRODUCTION

2.MORPHOLOGY
2.1.High-Luminosity Core Dominated Objects
2.2.FR II Radio Galaxies and Quasars
2.3.FR I Radio Galaxies and Quasars
2.4.Compact Steep Spectrum Sources and Compact Symmetric Objects

3.STRUCTURAL VARIATIONS
3.1.Apparent Superluminal Motion
3.2.Curved Trajectories
3.3.Variable Component Speeds
3.4.Broadband Activity and Emergence of New Jet Components

4.PHYSICAL CONDITIONS IN THE PARSEC-SCALE JETS
4.1.Helical Jets
4.2.Spectral Properties
4.3.Polarization Properties

5.CONCLUSION

REFERENCES