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UNIPOTENT COMMUTATIVE GROUP ACTIONS ON FLAG VARIETIES AND NILPOTENT MULTIPLICATIONS

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Our goal is to classify all generically transitive actions of commutative unipotent groups on flag varieties up to conjugation. We establish a relationship between this problem and the classification of multiplications with certain properties on Lie algebra representations. Then we classify multiplications with the desired properties and solve the initial classification problem.

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References

  1. B. Hasset, Yu. Tschinkel, Geometry of equivariant compactifications of G n a , Intern. Math. Research Notices 1999 (1999), no. 22, 1211–1230.

  2. E. В. Шаройко, Соответствие Хассетта-Чинкеля и автоморфизмы квадрики, Мат. Сб. 200 (2009), no. 11, 145–160. English transl.: E. V. Sharoiko, Hassett-Tschinkel correspondence and automorphisms of the quadric, Sb.: Math. 200 (2009), no. 11, 1715–1729.

  3. I. V. Arzhantsev, Flag varieties as equivariant compactifications of G n a , Proc. Amer. Math. Soc. 139 (2011), no. 3, 783–786.

  4. N. Bourbaki, Groupes et Algébres de Lie, Chaps. IV, V, VI, Hermann, Paris, 1968. Russian transl.: H. Бурбаки, Группы и алгебры Ли. Группы Кокстера и системы Титса. Группы, порожденные отражениями. Системы корней, Мир, М., 1972.

  5. M. Demazure, Automorphismes et déformations des variétés de Borel, Invent. Math. 39 (1977), no. 2, 179–186

  6. C. P. Ramanujam, A note on automorphism groups of algebraic varieties, Math. Ann. 156 (1964), 25–33.

  7. H. Matsumura, F. Oort, Representability of group functors, and automorphisms of algebraic schemes, Invent. Math. 4 (1967), 1–25.

  8. A. L. Onishchik, Topology of Transitive Transformation Groups, Johann Ambrosius Barth., Leipzig, 1994.

  9. J. E. Humphreys, Introduction to Lie Algebras and Representation Theory, 3rd ed., Springer, Berlin, 1980. Russian transl.: Дж Хамфрис Введение в теорию алгебр Ли и их представлений МЦНМО, М., 2003.

  10. A. L. Onishchik, E. B. Vinberg, Lie Groups and Algebraic Groups, Springer-Verlag, Berlin, 1990.

  11. [11]. Э. Б. Винберг, В. В. Горбацевич, А. Л. Онищик, Строение групп и алгебр Ли, в книге: Группы Ли и алгебры Ли—3, Итоги науки и техн., Совр. пробл. матем. Фунд. напр., T. 41, ВИНИТИ, М., 1990, Cтр. 5–257. Engl. transl.: A. L. Onishchik, E. B. Vinberg, V. V. Gorbatsevich, Structure of Lie groups and Lie algebras, in: Lie Groups and Lie Algebras III, Encyclopaedia of Mathematical Sciences, Vol. 41, Springer-Verlag, Berlin, 1994, pp. 3–248.

  12. J. Kollár, Rational Curves on Algebraic Varieties, Springer-Verlag, Berlin, 1996.

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Correspondence to ROSTISLAV DEVYATOV.

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Supported in part by the Simons Foundation.

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DEVYATOV, R. UNIPOTENT COMMUTATIVE GROUP ACTIONS ON FLAG VARIETIES AND NILPOTENT MULTIPLICATIONS. Transformation Groups 20, 21–64 (2015). https://doi.org/10.1007/s00031-015-9306-0

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