\BOOKMARK [1][-]{section.1}{1. Formal group algebras}{}% 1 \BOOKMARK [1][-]{section.2}{2. Root systems and regular elements}{}% 2 \BOOKMARK [1][-]{section.3}{3. Localized formal group algebras}{}% 3 \BOOKMARK [1][-]{section.4}{4. Formal Demazure operators}{}% 4 \BOOKMARK [1][-]{section.5}{5. Twisted formal group algebra and Demazure elements}{}% 5 \BOOKMARK [1][-]{section.6}{6. Invariant presentation of the formal affine Demazure algebra}{}% 6 \BOOKMARK [1][-]{section.7}{7. Presentation in terms of generators and relations}{}% 7 \BOOKMARK [1][-]{section.8}{8. Coproduct on the twisted formal group algebra}{}% 8 \BOOKMARK [1][-]{section.9}{9. Coproduct on the formal affine Demazure algebra}{}% 9 \BOOKMARK [1][-]{section.10}{10. Coproduct on the algebra of Demazure operators}{}% 10 \BOOKMARK [1][-]{section.11}{11. The dual of a formal affine Demazure algebra}{}% 11 \BOOKMARK [1][-]{section.12}{12. Appendix}{}% 12 \BOOKMARK [1][-]{section*.3}{References}{}% 13