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作者单位:Anatoly Libgober (1)
1. Department of Mathematics, University of Illinois, Chicago, IL, 60607, USA
刊物类别:Physics and Astronomy
刊物主题:Physics Mathematical and Computational Physics Quantum Physics Quantum Computing, Information and Physics Complexity Statistical Physics Relativity and Cosmology
出版者:Springer Berlin / Heidelberg
ISSN:1432-0916
文摘
We discuss an algebro-geometric description of Witten’s phases of N = 2 theories and propose a definition of their elliptic genus provided some conditions on singularities of the phases are met. For Landau–Ginzburg phase one recovers elliptic genus of LG models proposed in physics literature in early 1990s. For certain transitions between phases we derive invariance of elliptic genus from an equivariant form of McKay correspondence for elliptic genus. As special cases one obtains Landau–Giznburg/Calabi–Yau correspondence for elliptic genus of weighted homogeneous potentials as well as certain hybrid/CY correspondences. Communicated by H. OoguriAuthor supported by a grant from Simons Foundation.