For an element in the graded vector space of tangent bundle valued forms on a smooth manifold , a -submanifold is defined as a submanifold of such that . The class of -submanifolds encompasses calibrated submanifolds, complex submanifolds and all Lie subgroups in compact Lie groups. The graded vector space carries a natural graded Lie algebra structure, given by the Fr"olicher-Nijenhuis bracket . When is an odd degree element with , we associate to a -submanifold a strongly homotopy Lie algebra, which governs the formal and (under certain assumptions) smooth deformations of as a -submanifold, and we show that under certain assumptions these deformations form an analytic variety. As an application we revisit formal and smooth deformation theory of complex closed submanifolds and of -calibrated closed submanifolds, where is a parallel form in a real analytic Riemannian manifold.

生成讲解博客的中文版本

生成AI智能校验的中文版本