A Noncommutative Residue on Tori and a Semiclassical Limit

Details A Noncommutative Residue on Tori and a Semiclassical Limit A Noncommutative Residue on Tori and a Semiclassical Limit

2011-12-28

arxiv.org/abs/1112.6156v1

Mathematics

Analysis of PDEs

10 pages

Scientific paper

We define a noncommutative residue for classical Euclidean pseudodifferential operators on a torus of arbitrary dimension. We prove that, up to multiplication by a constant, it is the unique trace on the algebra of classical pseudodifferential operators modulo infinitely smoothing operators. In the case of the two torus, we show that the noncommutative residue is the semiclassical limit of a noncommutative residue defined on classical pseudodifferential operators on noncommutative two tori.

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