Noncommutative Maslov Index and Eta-Forms(Memoirs of the American Mathematical Society)

MaslovEta-Forms

拓扑学

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作      者
出版时间
2007年07月30日
装      帧
ISBN
9780821839973
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页      码
118
语      种
英文
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图书简介
The author defines and proves a noncommutative generalization of a formula relating the Maslov index of a triple of Lagrangian subspaces of a symplectic vector space to eta-invariants associated to a pair of Lagrangian subspaces. The noncommutative Maslov index, defined for modules over a (C^*)-algebra (mathcal{A}), is an element in (K_0(mathcal{A})). The generalized formula calculates its Chern character in the de Rham homology of certain dense subalgebras of (mathcal{A}). The proof is a noncommutative Atiyah-Patodi-Singer index theorem for a particular Dirac operator twisted by an (mathcal{A})-vector bundle. The author develops an analytic framework for this type of index problem.
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