ec 2 00 3 THEORY OF MULTI - FANS
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منابع مشابه
ar X iv : h ep - t h / 03 10 04 6 v 2 2 3 D ec 2 00 3 Boundary Action of N = 2 Super - Liouville Theory
We derive a boundary action of N = 2 super-Liouville theory which preserves both N = 2 supersymmetry and conformal symmetry by imposing explicitly T = T and G = G. The resulting boundary action shows a new duality symmetry.
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We present an algebraic method to study four-dimensional toric varieties by lifting matrix equations from the special linear group SL(2, Z) to its preimage in the universal cover of SL(2, R). With this method we recover the classification of two dimensional toric fans, and obtain a description of their semitoric analogue. As an application to symplectic geometry of Hamiltonian systems, we give ...
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Multi-fan is an analogous notion of fan in toric theory. Fan is a combinatorial object associated to a toric variety. Multi-fan is associated to an orbifold with an action of half the dimension of the orbifold. In this paper the equivariant elliptic genus and the equivariant orbifold elliptic genus of multi-fans are defined and their character formulas are exhibited. A vanishing theorem concern...
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