Appendix A. Lie groups, symmetric spaces and Yang-Mills fields;
Appendix B. Gamma matrices and spinors;
Appendix C. n-Spheres;
Appendix D. Palatini's identity;
Appendix E. Conformal rescalings;
Appendix F. Connections and curvature components;
Appendix G. The harmonic operator on R3 x S 1;
References;
Index.
