Back to the Abstract

	1 Introduction
	2 The virialized spherical halo and formation of the gaseous disk
	3 Magnetization of the disk
	4 Accretion to a compact region
	5 Self-similar evolution of the disk in a background potential
	6 Disk evolution in a self-gravitating regime
	7 Summary of the results and discussion
	8 Conclusions
	Appendix A: Core condensation in halos
	Appendix B: Time-dependent evolution of an alpha disk
	References