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arXiv 0809.3029hep-thmath.KT
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D-膜与双变K-理论

D-branes and bivariant K-theory

Richard J. Szabo

摘要:

我们回顾了K-理论中D-膜荷拓扑分类的各个方面,重点是几何K-同调和Kasparov的KK-理论。后一个公式能够详细描述大类非交换空间上的D-胚荷,并根据对应和KK-等价精确表征开弦T-对偶。在非对易黎曼曲面和常H-通量背景下的D-膜的例子被详细地处理。数学构造包括庞加莱对偶和K-定向的非交换推广、特征类和黎曼-洛克定理。

英文摘要:

We review various aspects of the topological classification of D-brane charges in K-theory, focusing on techniques from geometric K-homology and Kasparov's KK-theory. The latter formulation enables an elaborate description of D-brane charge on large classes of noncommutative spaces, and a refined characterization of open string T-duality in terms of correspondences and KK-equivalence. The examples of D-branes on noncommutative Riemann surfaces and in constant H-flux backgrounds are treated in detail. Mathematical constructions include noncommutative generalizations of Poincare duality and K-orientation, characteristic classes, and the Riemann-Roch theorem.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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