李代数胚与李子代数胚的同时变形
Simultaneous Deformations of Lie Algebroids and Lie Subalgebroids
摘要：
$L_\infty$ -代数是一种适合于描述变形问题的代数结构。本文构造了一个控制李代数胚变形的$L_\infty$ -代数和一个控制李子代数胚变形的$L_\infty$ -代数，这两个$L_\infty$-代数分别是微分分次李代数.我们还将这两个$L_\infty$ -代数合二为一，以控制一个李代数胚及其李子代数胚的同时变形。所得结果推广了李代数和李子代数的形变理论。这些结果的应用包括叶理的变形、复结构的变形和李代数胚同态的变形。
英文摘要：
The $L_\infty$-algebra is an algebraic structure suitable for describing deformation problems. In this paper we construct one $L_\infty$-algebra, which turns out to be a differential graded Lie algebra, to control the deformations of Lie algebroids and a second one to control the deformations of Lie subalgebroids. We also combine these two $L_\infty$-algebras into one to control the simultaneous deformations of a Lie algebroid and its Lie subalgebroids. The results generalize the deformation theory of Lie algebra and Lie subalgebras. Applications of our results include deformations of foliations, deformations of complex structures and deformations of homomorphisms of Lie algebroids.
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