Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-08-30
Nucl.Phys. B730 (2005) 352-363
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX, 15 pages
Scientific paper
10.1016/j.nuclphysb.2005.09.025
We say that a function F(tau) obeys WDVV equations, if for a given invertible symmetric matrix eta^{alpha beta} and all tau \in T \subset R^n, the expressions c^{alpha}_{beta gamma}(tau) = eta^{alpha lambda} c_{lambda beta gamma}(tau) = eta^{alpha lambda} \partial_{lambda} \partial_{beta} \partial_{gamma} F can be considered as structure constants of commutative associative algebra; the matrix eta_{alpha beta} inverse to \eta^{\alpha \beta} determines an invariant scalar product on this algebra. A function x^{alpha}(z, tau) obeying \partial_{alpha} \partial_{beta} x^{gamma} (z, tau) = z^{-1} c^{varepsilon}_{alpha beta} \partial_{epsilon} x^{gamma} (z, tau) is called a calibration of a solution of WDVV equations. We show that there exists an infinite-dimensional group acting on the space of calibrated solutions of WDVV equations (in different form such a group was constructed in [2]). We describe the action of Lie algebra of this group.
Chen Yujun
Kontsevich Maxim
Schwarz Albert
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