کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1894575 1044204 2007 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
(Second) Quantised resolvents and regularised traces
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
(Second) Quantised resolvents and regularised traces
چکیده انگلیسی

Regularised traces on classical pseudodifferential operators are extended to tensor products of classical pseudodifferential operators via a (second) quantisation procedure  . Whereas ordinary ζζ-regularised traces are not generally expected to be local, using techniques borrowed from Connes and Moscovici [A. Connes, H. Moscovici, The local index formula in noncommutative geometry, Geom. Funct. Anal. 5 (2) (1995) 174–243], Higson [N. Higson, The residue index theorem of Connes and Moscovici, in: Clay Mathematics Proceedings, 2004, http://www.math.psu.edu/higson/ResearchPapers.html], we show that if QQ has scalar leading symbol, higher quantised  ζζ-regularised traces   are local since they can be expressed as a finite linear combination of noncommutative residues. Just as ordinary ζζ-regularised traces, they present anomalies (Hochschild coboundary, dependence on the weight QQ), which for quantised ζζ-regularised traces of level nn, are roughly speaking finite linear combinations of quantised regularised traces of level n+1n+1. As a result, anomalies are local for any non negative nn, which yields back as a particular case the fact that ordinary ζζ-regularised traces present local anomalies.1

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Geometry and Physics - Volume 57, Issue 5, April 2007, Pages 1345–1369
نویسندگان
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