Abstract:
A construction of a foliation of a toric Fano variety by Lagrangian tori is presented; it is based on linear subsystems of divisor systems of various degrees invariant under the Hamiltonian action of distinguished function-symbols. It is shown that known examples of foliations (such as the Clifford foliation and D. Auroux's example) are special cases of this construction. As an application, nontoric Lagrangian foliations by tori of two-dimensional quadrics and projective space are constructed.
Keywords:
foliation, toric Fano variety, Lagrangian torus, Auroux foliation, Berezin symbol, Hamiltonian action of a symbol, moment map, geometric quantization.
Citation:
S. A. Belev, N. A. Tyurin, “Nontoric Foliations by Lagrangian Tori of Toric Fano Varieties”, Mat. Zametki, 87:1 (2010), 48–59; Math. Notes, 87:1 (2010), 43–51
This publication is cited in the following 9 articles:
Tiago Carvalho, Luiz Fernando Gonçalves, “Creation of Limit Cycles in Piecewise Smooth Vector Fields Tangent to Nested Tori”, Qual. Theory Dyn. Syst., 20:2 (2021)
N. A. Tyurin, “Pseudotoric structures: Lagrangian submanifolds and Lagrangian fibrations”, Russian Math. Surveys, 72:3 (2017), 513–546
Carvalho T., Teixeira M.A., “On piecewise smooth vector fields tangent to nested tori”, J. Differ. Equ., 261:7 (2016), 4008–4029
N. A. Tyurin, “Pseudotoric structures on a hyperplane section of a toric manifold”, Theoret. and Math. Phys., 182:2 (2015), 159–172
Tyurin N.A., “Exotic Chekanov Tori in Toric Symplectic Varieties”, Xxth International Conference on Integrable Systems and Quantum Symmetries (Isqs-20), Journal of Physics Conference Series, 411, eds. Burdik C., Navratil O., Posta S., IOP Publishing Ltd, 2013, 012028
S. A. Belev, N. A. Tyurin, “Lifts of Lagrangian Tori”, Math. Notes, 91:5 (2012), 735–737
N. A. Tyurin, “Nonstandard Lagrangian tori and pseudotoric structures”, Theoret. and Math. Phys., 171:2 (2012), 700–703
N. A. Tyurin, “Chekanov tori and pseudotoric structures”, Russian Math. Surveys, 66:1 (2011), 181–182
N. A. Tyurin, “Special Lagrangian fibrations on the flag variety F3”, Theoret. and Math. Phys., 167:2 (2011), 567–576