标题： (0,2) 目标空间对偶性，CICYs与反射层 显示英文标题

标题： (0,2) Target Space Duality, CICYs and Reflexive Sheaves

摘要： 结果显示，最近提出的关于(0,2)模型的靶空间对偶性并不局限于可以描述为Landau-Ginzburg理论的模型。通过研究一些通用的例子，这种对偶性被确立在更广泛的定向丛类上，这些定向丛位于toric簇的完全交集上。一对对偶模型同意在更一般的非几何相位中，而不是共享一个共同的Landau-Ginzburg区域。同时，文中还提供了处理反射层的数学工具。 显示英文摘要

摘要： It is shown that the recently proposed target space duality for (0,2) models is not limited to models admitting a Landau-Ginzburg description. By studying some generic examples it is established for the broader class of vector bundles over complete intersections in toric varieties. Instead of sharing a common Landau-Ginzburg locus, a pair of dual models agrees in more general non-geometric phases. The mathematical tools for treating reflexive sheaves are provided, as well.