Reduction of the Calculus of Pseudodifferential Operators on a Noncompact Manifold to the Calculus on a Compact Manifold of Doubled Dimensionстатья
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Дата последнего поиска статьи во внешних источниках: 8 октября 2014 г.
Аннотация:We construct
a reduction (following an idea of S. P. Novikov) of the calculus of pseudodifferential operators
on Euclidean space Rn to a similar calculus in the space of sections of a one-dimensional fiber
bundle ξ on the 2n-dimensional torus T^{2n}. This reduction enables us to identify the Schwartz
space on Rn with the space of smooth sections Γ∞(T^{2n}, ξ), compare the Sobolev norms on the
corresponding spaces and pseudodifferential operators in them, and describe the class of elliptic
operators that reduce to Fredholm operators in Sobolev norms. Thus, for a natural class of elliptic
pseudodifferential operators on a noncompact manifold of Rn, we construct an index formula in
accordance with the classical Atya–Singer formula.