Quasihomomorphisms and the residue Chern character
Quasihomomorphisms and the residue Chern character
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DOI:
10.1016/j.geomphys.2010.05.005
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发表时间:
2008-04
期刊:
影响因子:
--
通讯作者:
Denis Perrot
中科院分区:
文献类型:
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作者:
Denis Perrot
We develop a general procedure, based on the renormalized eta-cochain, which allows to find “local” representatives of the bivariant Chern character of finitely summable quasihomomorphisms. In particular, using zeta-function renormalization we obtain a bivariant generalization of the Connes–Moscovici residue formula, and explain the link with chiral and multiplicative anomalies in quantum field theory.